xref: /libcore/ojluni/src/main/java/java/sql/ResultSet.java

/*
 * Copyright (C) 2014 The Android Open Source Project
 * Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package java.sql;

import java.math.BigDecimal;
import java.util.Calendar;
import java.io.Reader;
import java.io.InputStream;

/**
 * A table of data representing a database result set, which
 * is usually generated by executing a statement that queries the database.
 *
 * <P>A <code>ResultSet</code> object  maintains a cursor pointing
 * to its current row of data.  Initially the cursor is positioned
 * before the first row. The <code>next</code> method moves the
 * cursor to the next row, and because it returns <code>false</code>
 * when there are no more rows in the <code>ResultSet</code> object,
 * it can be used in a <code>while</code> loop to iterate through
 * the result set.
 * <P>
 * A default <code>ResultSet</code> object is not updatable and
 * has a cursor that moves forward only.  Thus, you can
 * iterate through it only once and only from the first row to the
 * last row. It is possible to
 * produce <code>ResultSet</code> objects that are scrollable and/or
 * updatable.  The following code fragment, in which <code>con</code>
 * is a valid <code>Connection</code> object, illustrates how to make
 * a result set that is scrollable and insensitive to updates by others, and
 * that is updatable. See <code>ResultSet</code> fields for other
 * options.
 * <PRE>
 *
 *       Statement stmt = con.createStatement(
 *                                      ResultSet.TYPE_SCROLL_INSENSITIVE,
 *                                      ResultSet.CONCUR_UPDATABLE);
 *       ResultSet rs = stmt.executeQuery("SELECT a, b FROM TABLE2");
 *       // rs will be scrollable, will not show changes made by others,
 *       // and will be updatable
 *
 * </PRE>
 * The <code>ResultSet</code> interface provides
 * <i>getter</i> methods (<code>getBoolean</code>, <code>getLong</code>, and so on)
 * for retrieving column values from the current row.
 * Values can be retrieved using either the index number of the
 * column or the name of the column.  In general, using the
 * column index will be more efficient.  Columns are numbered from 1.
 * For maximum portability, result set columns within each row should be
 * read in left-to-right order, and each column should be read only once.
 *
 * <P>For the getter methods, a JDBC driver attempts
 * to convert the underlying data to the Java type specified in the
 * getter method and returns a suitable Java value.  The JDBC specification
 * has a table showing the allowable mappings from SQL types to Java types
 * that can be used by the <code>ResultSet</code> getter methods.
 * <P>
 * <P>Column names used as input to getter methods are case
 * insensitive.  When a getter method is called  with
 * a column name and several columns have the same name,
 * the value of the first matching column will be returned.
 * The column name option is
 * designed to be used when column names are used in the SQL
 * query that generated the result set.
 * For columns that are NOT explicitly named in the query, it
 * is best to use column numbers. If column names are used, the
 * programmer should take care to guarantee that they uniquely refer to
 * the intended columns, which can be assured with the SQL <i>AS</i> clause.
 * <P>
 * A set of updater methods were added to this interface
 * in the JDBC 2.0 API (Java<sup><font size=-2>TM</font></sup> 2 SDK,
 * Standard Edition, version 1.2). The comments regarding parameters
 * to the getter methods also apply to parameters to the
 * updater methods.
 *<P>
 * The updater methods may be used in two ways:
 * <ol>
 * <LI>to update a column value in the current row.  In a scrollable
 *     <code>ResultSet</code> object, the cursor can be moved backwards
 *     and forwards, to an absolute position, or to a position
 *     relative to the current row.
 *     The following code fragment updates the <code>NAME</code> column
 *     in the fifth row of the <code>ResultSet</code> object
 *     <code>rs</code> and then uses the method <code>updateRow</code>
 *     to update the data source table from which <code>rs</code> was derived.
 * <PRE>
 *
 *       rs.absolute(5); // moves the cursor to the fifth row of rs
 *       rs.updateString("NAME", "AINSWORTH"); // updates the
 *          // <code>NAME</code> column of row 5 to be <code>AINSWORTH</code>
 *       rs.updateRow(); // updates the row in the data source
 *
 * </PRE>
 * <LI>to insert column values into the insert row.  An updatable
 *     <code>ResultSet</code> object has a special row associated with
 *     it that serves as a staging area for building a row to be inserted.
 *     The following code fragment moves the cursor to the insert row, builds
 *     a three-column row, and inserts it into <code>rs</code> and into
 *     the data source table using the method <code>insertRow</code>.
 * <PRE>
 *
 *       rs.moveToInsertRow(); // moves cursor to the insert row
 *       rs.updateString(1, "AINSWORTH"); // updates the
 *          // first column of the insert row to be <code>AINSWORTH</code>
 *       rs.updateInt(2,35); // updates the second column to be <code>35</code>
 *       rs.updateBoolean(3, true); // updates the third column to <code>true</code>
 *       rs.insertRow();
 *       rs.moveToCurrentRow();
 *
 * </PRE>
 * </ol>
 * <P>A <code>ResultSet</code> object is automatically closed when the
 * <code>Statement</code> object that
 * generated it is closed, re-executed, or used
 * to retrieve the next result from a sequence of multiple results.
 *
 * <P>The number, types and properties of a <code>ResultSet</code>
 * object's columns are provided by the <code>ResultSetMetaData</code>
 * object returned by the <code>ResultSet.getMetaData</code> method.
 *
 * @see Statement#executeQuery
 * @see Statement#getResultSet
 * @see ResultSetMetaData
 */

public interface ResultSet extends Wrapper, AutoCloseable {

    /**
     * Moves the cursor froward one row from its current position.
     * A <code>ResultSet</code> cursor is initially positioned
     * before the first row; the first call to the method
     * <code>next</code> makes the first row the current row; the
     * second call makes the second row the current row, and so on.
     * <p>
     * When a call to the <code>next</code> method returns <code>false</code>,
     * the cursor is positioned after the last row. Any
     * invocation of a <code>ResultSet</code> method which requires a
     * current row will result in a <code>SQLException</code> being thrown.
     *  If the result set type is <code>TYPE_FORWARD_ONLY</code>, it is vendor specified
     * whether their JDBC driver implementation will return <code>false</code> or
     *  throw an <code>SQLException</code> on a
     * subsequent call to <code>next</code>.
     *
     * <P>If an input stream is open for the current row, a call
     * to the method <code>next</code> will
     * implicitly close it. A <code>ResultSet</code> object's
     * warning chain is cleared when a new row is read.
     *
     * @return <code>true</code> if the new current row is valid;
     * <code>false</code> if there are no more rows
     * @exception SQLException if a database access error occurs or this method is
     *            called on a closed result set
     */
    boolean next() throws SQLException;


    /**
     * Releases this <code>ResultSet</code> object's database and
     * JDBC resources immediately instead of waiting for
     * this to happen when it is automatically closed.
     *
     * <P>The closing of a <code>ResultSet</code> object does <strong>not</strong> close the <code>Blob</code>,
     * <code>Clob</code> or <code>NClob</code> objects created by the <code>ResultSet</code>. <code>Blob</code>,
     * <code>Clob</code> or <code>NClob</code> objects remain valid for at least the duration of the
     * transaction in which they are creataed, unless their <code>free</code> method is invoked.
     *<p>
     * When a <code>ResultSet</code> is closed, any <code>ResultSetMetaData</code>
     * instances that were created by calling the  <code>getMetaData</code>
     * method remain accessible.
     *
     * <P><B>Note:</B> A <code>ResultSet</code> object
     * is automatically closed by the
     * <code>Statement</code> object that generated it when
     * that <code>Statement</code> object is closed,
     * re-executed, or is used to retrieve the next result from a
     * sequence of multiple results.
     *<p>
     * Calling the method <code>close</code> on a <code>ResultSet</code>
     * object that is already closed is a no-op.
     * <P>
     * <p>
     *
     * @exception SQLException if a database access error occurs
     */
    void close() throws SQLException;

    /**
     * Reports whether
     * the last column read had a value of SQL <code>NULL</code>.
     * Note that you must first call one of the getter methods
     * on a column to try to read its value and then call
     * the method <code>wasNull</code> to see if the value read was
     * SQL <code>NULL</code>.
     *
     * @return <code>true</code> if the last column value read was SQL
     *         <code>NULL</code> and <code>false</code> otherwise
     * @exception SQLException if a database access error occurs or this method is
     *            called on a closed result set
     */
    boolean wasNull() throws SQLException;

    // Methods for accessing results by column index

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>String</code> in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    String getString(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>boolean</code> in the Java programming language.
     *
     * <P>If the designated column has a datatype of CHAR or VARCHAR
     * and contains a "0" or has a datatype of BIT, TINYINT, SMALLINT, INTEGER or BIGINT
     * and contains  a 0, a value of <code>false</code> is returned.  If the designated column has a datatype
     * of CHAR or VARCHAR
     * and contains a "1" or has a datatype of BIT, TINYINT, SMALLINT, INTEGER or BIGINT
     * and contains  a 1, a value of <code>true</code> is returned.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>false</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    boolean getBoolean(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>byte</code> in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    byte getByte(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>short</code> in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    short getShort(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * an <code>int</code> in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    int getInt(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>long</code> in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    long getLong(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>float</code> in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    float getFloat(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>double</code> in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    double getDouble(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>java.sql.BigDecimal</code> in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param scale the number of digits to the right of the decimal point
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @deprecated Use {@code getBigDecimal(int columnIndex)}
     *             or {@code getBigDecimal(String columnLabel)}
     */
    @Deprecated
    BigDecimal getBigDecimal(int columnIndex, int scale) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>byte</code> array in the Java programming language.
     * The bytes represent the raw values returned by the driver.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    byte[] getBytes(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>java.sql.Date</code> object in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    java.sql.Date getDate(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>java.sql.Time</code> object in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    java.sql.Time getTime(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>java.sql.Timestamp</code> object in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    java.sql.Timestamp getTimestamp(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a stream of ASCII characters. The value can then be read in chunks from the
     * stream. This method is particularly
     * suitable for retrieving large <code>LONGVARCHAR</code> values.
     * The JDBC driver will
     * do any necessary conversion from the database format into ASCII.
     *
     * <P><B>Note:</B> All the data in the returned stream must be
     * read prior to getting the value of any other column. The next
     * call to a getter method implicitly closes the stream.  Also, a
     * stream may return <code>0</code> when the method
     * <code>InputStream.available</code>
     * is called whether there is data available or not.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return a Java input stream that delivers the database column value
     * as a stream of one-byte ASCII characters;
     * if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    java.io.InputStream getAsciiStream(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * as a stream of two-byte 3 characters. The first byte is
     * the high byte; the second byte is the low byte.
     *
     * The value can then be read in chunks from the
     * stream. This method is particularly
     * suitable for retrieving large <code>LONGVARCHAR</code>values.  The
     * JDBC driver will do any necessary conversion from the database
     * format into Unicode.
     *
     * <P><B>Note:</B> All the data in the returned stream must be
     * read prior to getting the value of any other column. The next
     * call to a getter method implicitly closes the stream.
     * Also, a stream may return <code>0</code> when the method
     * <code>InputStream.available</code>
     * is called, whether there is data available or not.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return a Java input stream that delivers the database column value
     *         as a stream of two-byte Unicode characters;
     *         if the value is SQL <code>NULL</code>, the value returned is
     *         <code>null</code>
     *
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @deprecated use <code>getCharacterStream</code> in place of
     *              <code>getUnicodeStream</code>
     */
    @Deprecated
    java.io.InputStream getUnicodeStream(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a  stream of
     * uninterpreted bytes. The value can then be read in chunks from the
     * stream. This method is particularly
     * suitable for retrieving large <code>LONGVARBINARY</code> values.
     *
     * <P><B>Note:</B> All the data in the returned stream must be
     * read prior to getting the value of any other column. The next
     * call to a getter method implicitly closes the stream.  Also, a
     * stream may return <code>0</code> when the method
     * <code>InputStream.available</code>
     * is called whether there is data available or not.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return a Java input stream that delivers the database column value
     *         as a stream of uninterpreted bytes;
     *         if the value is SQL <code>NULL</code>, the value returned is
     *         <code>null</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    java.io.InputStream getBinaryStream(int columnIndex)
        throws SQLException;


    // Methods for accessing results by column label

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>String</code> in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    String getString(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>boolean</code> in the Java programming language.
     *
     * <P>If the designated column has a datatype of CHAR or VARCHAR
     * and contains a "0" or has a datatype of BIT, TINYINT, SMALLINT, INTEGER or BIGINT
     * and contains  a 0, a value of <code>false</code> is returned.  If the designated column has a datatype
     * of CHAR or VARCHAR
     * and contains a "1" or has a datatype of BIT, TINYINT, SMALLINT, INTEGER or BIGINT
     * and contains  a 1, a value of <code>true</code> is returned.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>false</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    boolean getBoolean(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>byte</code> in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    byte getByte(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>short</code> in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    short getShort(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * an <code>int</code> in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    int getInt(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>long</code> in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    long getLong(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>float</code> in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    float getFloat(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>double</code> in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>0</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    double getDouble(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>java.math.BigDecimal</code> in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param scale the number of digits to the right of the decimal point
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @deprecated Use {@code getBigDecimal(int columnIndex)}
     *             or {@code getBigDecimal(String columnLabel)}
     */
    @Deprecated
    BigDecimal getBigDecimal(String columnLabel, int scale) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>byte</code> array in the Java programming language.
     * The bytes represent the raw values returned by the driver.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    byte[] getBytes(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>java.sql.Date</code> object in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    java.sql.Date getDate(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>java.sql.Time</code> object in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value;
     * if the value is SQL <code>NULL</code>,
     * the value returned is <code>null</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    java.sql.Time getTime(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>java.sql.Timestamp</code> object in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    java.sql.Timestamp getTimestamp(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a stream of
     * ASCII characters. The value can then be read in chunks from the
     * stream. This method is particularly
     * suitable for retrieving large <code>LONGVARCHAR</code> values.
     * The JDBC driver will
     * do any necessary conversion from the database format into ASCII.
     *
     * <P><B>Note:</B> All the data in the returned stream must be
     * read prior to getting the value of any other column. The next
     * call to a getter method implicitly closes the stream. Also, a
     * stream may return <code>0</code> when the method <code>available</code>
     * is called whether there is data available or not.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a Java input stream that delivers the database column value
     * as a stream of one-byte ASCII characters.
     * If the value is SQL <code>NULL</code>,
     * the value returned is <code>null</code>.
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    java.io.InputStream getAsciiStream(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a stream of two-byte
     * Unicode characters. The first byte is the high byte; the second
     * byte is the low byte.
     *
     * The value can then be read in chunks from the
     * stream. This method is particularly
     * suitable for retrieving large <code>LONGVARCHAR</code> values.
     * The JDBC technology-enabled driver will
     * do any necessary conversion from the database format into Unicode.
     *
     * <P><B>Note:</B> All the data in the returned stream must be
     * read prior to getting the value of any other column. The next
     * call to a getter method implicitly closes the stream.
     * Also, a stream may return <code>0</code> when the method
     * <code>InputStream.available</code> is called, whether there
     * is data available or not.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a Java input stream that delivers the database column value
     *         as a stream of two-byte Unicode characters.
     *         If the value is SQL <code>NULL</code>, the value returned
     *         is <code>null</code>.
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @deprecated use <code>getCharacterStream</code> instead
     */
    @Deprecated
    java.io.InputStream getUnicodeStream(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a stream of uninterpreted
     * <code>byte</code>s.
     * The value can then be read in chunks from the
     * stream. This method is particularly
     * suitable for retrieving large <code>LONGVARBINARY</code>
     * values.
     *
     * <P><B>Note:</B> All the data in the returned stream must be
     * read prior to getting the value of any other column. The next
     * call to a getter method implicitly closes the stream. Also, a
     * stream may return <code>0</code> when the method <code>available</code>
     * is called whether there is data available or not.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a Java input stream that delivers the database column value
     * as a stream of uninterpreted bytes;
     * if the value is SQL <code>NULL</code>, the result is <code>null</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    java.io.InputStream getBinaryStream(String columnLabel)
        throws SQLException;


    // Advanced features:

    /**
     * Retrieves the first warning reported by calls on this
     * <code>ResultSet</code> object.
     * Subsequent warnings on this <code>ResultSet</code> object
     * will be chained to the <code>SQLWarning</code> object that
     * this method returns.
     *
     * <P>The warning chain is automatically cleared each time a new
     * row is read.  This method may not be called on a <code>ResultSet</code>
     * object that has been closed; doing so will cause an
     * <code>SQLException</code> to be thrown.
     * <P>
     * <B>Note:</B> This warning chain only covers warnings caused
     * by <code>ResultSet</code> methods.  Any warning caused by
     * <code>Statement</code> methods
     * (such as reading OUT parameters) will be chained on the
     * <code>Statement</code> object.
     *
     * @return the first <code>SQLWarning</code> object reported or
     *         <code>null</code> if there are none
     * @exception SQLException if a database access error occurs or this method is
     *            called on a closed result set
     */
    SQLWarning getWarnings() throws SQLException;

    /**
     * Clears all warnings reported on this <code>ResultSet</code> object.
     * After this method is called, the method <code>getWarnings</code>
     * returns <code>null</code> until a new warning is
     * reported for this <code>ResultSet</code> object.
     *
     * @exception SQLException if a database access error occurs or this method is
     *            called on a closed result set
     */
    void clearWarnings() throws SQLException;

    /**
     * Retrieves the name of the SQL cursor used by this <code>ResultSet</code>
     * object.
     *
     * <P>In SQL, a result table is retrieved through a cursor that is
     * named. The current row of a result set can be updated or deleted
     * using a positioned update/delete statement that references the
     * cursor name. To insure that the cursor has the proper isolation
     * level to support update, the cursor's <code>SELECT</code> statement
     * should be of the form <code>SELECT FOR UPDATE</code>. If
     * <code>FOR UPDATE</code> is omitted, the positioned updates may fail.
     *
     * <P>The JDBC API supports this SQL feature by providing the name of the
     * SQL cursor used by a <code>ResultSet</code> object.
     * The current row of a <code>ResultSet</code> object
     * is also the current row of this SQL cursor.
     *
     * @return the SQL name for this <code>ResultSet</code> object's cursor
     * @exception SQLException if a database access error occurs or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     */
    String getCursorName() throws SQLException;

    /**
     * Retrieves the  number, types and properties of
     * this <code>ResultSet</code> object's columns.
     *
     * @return the description of this <code>ResultSet</code> object's columns
     * @exception SQLException if a database access error occurs or this method is
     *            called on a closed result set
     */
    ResultSetMetaData getMetaData() throws SQLException;

    /**
     * <p>Gets the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * an <code>Object</code> in the Java programming language.
     *
     * <p>This method will return the value of the given column as a
     * Java object.  The type of the Java object will be the default
     * Java object type corresponding to the column's SQL type,
     * following the mapping for built-in types specified in the JDBC
     * specification. If the value is an SQL <code>NULL</code>,
     * the driver returns a Java <code>null</code>.
     *
     * <p>This method may also be used to read database-specific
     * abstract data types.
     *
     * In the JDBC 2.0 API, the behavior of method
     * <code>getObject</code> is extended to materialize
     * data of SQL user-defined types.
     * <p>
     * If <code>Connection.getTypeMap</code> does not throw a
     * <code>SQLFeatureNotSupportedException</code>,
     * then when a column contains a structured or distinct value,
     * the behavior of this method is as
     * if it were a call to: <code>getObject(columnIndex,
     * this.getStatement().getConnection().getTypeMap())</code>.
     *
     * If <code>Connection.getTypeMap</code> does throw a
     * <code>SQLFeatureNotSupportedException</code>,
     * then structured values are not supported, and distinct values
     * are mapped to the default Java class as determined by the
     * underlying SQL type of the DISTINCT type.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return a <code>java.lang.Object</code> holding the column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    Object getObject(int columnIndex) throws SQLException;

    /**
     * <p>Gets the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * an <code>Object</code> in the Java programming language.
     *
     * <p>This method will return the value of the given column as a
     * Java object.  The type of the Java object will be the default
     * Java object type corresponding to the column's SQL type,
     * following the mapping for built-in types specified in the JDBC
     * specification. If the value is an SQL <code>NULL</code>,
     * the driver returns a Java <code>null</code>.
     * <P>
     * This method may also be used to read database-specific
     * abstract data types.
     * <P>
     * In the JDBC 2.0 API, the behavior of the method
     * <code>getObject</code> is extended to materialize
     * data of SQL user-defined types.  When a column contains
     * a structured or distinct value, the behavior of this method is as
     * if it were a call to: <code>getObject(columnIndex,
     * this.getStatement().getConnection().getTypeMap())</code>.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a <code>java.lang.Object</code> holding the column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     */
    Object getObject(String columnLabel) throws SQLException;

    //----------------------------------------------------------------

    /**
     * Maps the given <code>ResultSet</code> column label to its
     * <code>ResultSet</code> column index.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column index of the given column name
     * @exception SQLException if the <code>ResultSet</code> object
     * does not contain a column labeled <code>columnLabel</code>, a database access error occurs
     *  or this method is called on a closed result set
     */
    int findColumn(String columnLabel) throws SQLException;


    //--------------------------JDBC 2.0-----------------------------------

    //---------------------------------------------------------------------
    // Getters and Setters
    //---------------------------------------------------------------------

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a
     * <code>java.io.Reader</code> object.
     * @return a <code>java.io.Reader</code> object that contains the column
     * value; if the value is SQL <code>NULL</code>, the value returned is
     * <code>null</code> in the Java programming language.
     * @param columnIndex the first column is 1, the second is 2, ...
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     * @since 1.2
     */
    java.io.Reader getCharacterStream(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a
     * <code>java.io.Reader</code> object.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a <code>java.io.Reader</code> object that contains the column
     * value; if the value is SQL <code>NULL</code>, the value returned is
     * <code>null</code> in the Java programming language
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     * @since 1.2
     */
    java.io.Reader getCharacterStream(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a
     * <code>java.math.BigDecimal</code> with full precision.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value (full precision);
     * if the value is SQL <code>NULL</code>, the value returned is
     * <code>null</code> in the Java programming language.
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     * @since 1.2
     */
    BigDecimal getBigDecimal(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a
     * <code>java.math.BigDecimal</code> with full precision.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value (full precision);
     * if the value is SQL <code>NULL</code>, the value returned is
     * <code>null</code> in the Java programming language.
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs or this method is
     *            called on a closed result set
     * @since 1.2
     *
     */
    BigDecimal getBigDecimal(String columnLabel) throws SQLException;

    //---------------------------------------------------------------------
    // Traversal/Positioning
    //---------------------------------------------------------------------

    /**
     * Retrieves whether the cursor is before the first row in
     * this <code>ResultSet</code> object.
     * <p>
     * <strong>Note:</strong>Support for the <code>isBeforeFirst</code> method
     * is optional for <code>ResultSet</code>s with a result
     * set type of <code>TYPE_FORWARD_ONLY</code>
     *
     * @return <code>true</code> if the cursor is before the first row;
     * <code>false</code> if the cursor is at any other position or the
     * result set contains no rows
     * @exception SQLException if a database access error occurs or this method is
     *            called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    boolean isBeforeFirst() throws SQLException;

    /**
     * Retrieves whether the cursor is after the last row in
     * this <code>ResultSet</code> object.
     * <p>
     * <strong>Note:</strong>Support for the <code>isAfterLast</code> method
     * is optional for <code>ResultSet</code>s with a result
     * set type of <code>TYPE_FORWARD_ONLY</code>
     *
     * @return <code>true</code> if the cursor is after the last row;
     * <code>false</code> if the cursor is at any other position or the
     * result set contains no rows
     * @exception SQLException if a database access error occurs or this method is
     *            called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    boolean isAfterLast() throws SQLException;

    /**
     * Retrieves whether the cursor is on the first row of
     * this <code>ResultSet</code> object.
     * <p>
     * <strong>Note:</strong>Support for the <code>isFirst</code> method
     * is optional for <code>ResultSet</code>s with a result
     * set type of <code>TYPE_FORWARD_ONLY</code>
     *
     * @return <code>true</code> if the cursor is on the first row;
     * <code>false</code> otherwise
     * @exception SQLException if a database access error occurs or this method is
     *            called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    boolean isFirst() throws SQLException;

    /**
     * Retrieves whether the cursor is on the last row of
     * this <code>ResultSet</code> object.
     *  <strong>Note:</strong> Calling the method <code>isLast</code> may be expensive
     * because the JDBC driver
     * might need to fetch ahead one row in order to determine
     * whether the current row is the last row in the result set.
     * <p>
     * <strong>Note:</strong> Support for the <code>isLast</code> method
     * is optional for <code>ResultSet</code>s with a result
     * set type of <code>TYPE_FORWARD_ONLY</code>
     * @return <code>true</code> if the cursor is on the last row;
     * <code>false</code> otherwise
     * @exception SQLException if a database access error occurs or this method is
     *            called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    boolean isLast() throws SQLException;

    /**
     * Moves the cursor to the front of
     * this <code>ResultSet</code> object, just before the
     * first row. This method has no effect if the result set contains no rows.
     *
     * @exception SQLException if a database access error
     * occurs; this method is called on a closed result set or the
     * result set type is <code>TYPE_FORWARD_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void beforeFirst() throws SQLException;

    /**
     * Moves the cursor to the end of
     * this <code>ResultSet</code> object, just after the
     * last row. This method has no effect if the result set contains no rows.
     * @exception SQLException if a database access error
     * occurs; this method is called on a closed result set
     * or the result set type is <code>TYPE_FORWARD_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void afterLast() throws SQLException;

    /**
     * Moves the cursor to the first row in
     * this <code>ResultSet</code> object.
     *
     * @return <code>true</code> if the cursor is on a valid row;
     * <code>false</code> if there are no rows in the result set
     * @exception SQLException if a database access error
     * occurs; this method is called on a closed result set
     * or the result set type is <code>TYPE_FORWARD_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    boolean first() throws SQLException;

    /**
     * Moves the cursor to the last row in
     * this <code>ResultSet</code> object.
     *
     * @return <code>true</code> if the cursor is on a valid row;
     * <code>false</code> if there are no rows in the result set
     * @exception SQLException if a database access error
     * occurs; this method is called on a closed result set
     * or the result set type is <code>TYPE_FORWARD_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    boolean last() throws SQLException;

    /**
     * Retrieves the current row number.  The first row is number 1, the
     * second number 2, and so on.
     * <p>
     * <strong>Note:</strong>Support for the <code>getRow</code> method
     * is optional for <code>ResultSet</code>s with a result
     * set type of <code>TYPE_FORWARD_ONLY</code>
     *
     * @return the current row number; <code>0</code> if there is no current row
     * @exception SQLException if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    int getRow() throws SQLException;

    /**
     * Moves the cursor to the given row number in
     * this <code>ResultSet</code> object.
     *
     * <p>If the row number is positive, the cursor moves to
     * the given row number with respect to the
     * beginning of the result set.  The first row is row 1, the second
     * is row 2, and so on.
     *
     * <p>If the given row number is negative, the cursor moves to
     * an absolute row position with respect to
     * the end of the result set.  For example, calling the method
     * <code>absolute(-1)</code> positions the
     * cursor on the last row; calling the method <code>absolute(-2)</code>
     * moves the cursor to the next-to-last row, and so on.
     *
     * <p>If the row number specified is zero, the cursor is moved to
     * before the first row.
     *
     * <p>An attempt to position the cursor beyond the first/last row in
     * the result set leaves the cursor before the first row or after
     * the last row.
     *
     * <p><B>Note:</B> Calling <code>absolute(1)</code> is the same
     * as calling <code>first()</code>. Calling <code>absolute(-1)</code>
     * is the same as calling <code>last()</code>.
     *
     * @param row the number of the row to which the cursor should move.
     *        A value of zero indicates that the cursor will be positioned
     *        before the first row; a positive number indicates the row number
     *        counting from the beginning of the result set; a negative number
     *        indicates the row number counting from the end of the result set
     * @return <code>true</code> if the cursor is moved to a position in this
     * <code>ResultSet</code> object;
     * <code>false</code> if the cursor is before the first row or after the
     * last row
     * @exception SQLException if a database access error
     * occurs; this method is called on a closed result set
     * or the result set type is <code>TYPE_FORWARD_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    boolean absolute( int row ) throws SQLException;

    /**
     * Moves the cursor a relative number of rows, either positive or negative.
     * Attempting to move beyond the first/last row in the
     * result set positions the cursor before/after the
     * the first/last row. Calling <code>relative(0)</code> is valid, but does
     * not change the cursor position.
     *
     * <p>Note: Calling the method <code>relative(1)</code>
     * is identical to calling the method <code>next()</code> and
     * calling the method <code>relative(-1)</code> is identical
     * to calling the method <code>previous()</code>.
     *
     * @param rows an <code>int</code> specifying the number of rows to
     *        move from the current row; a positive number moves the cursor
     *        forward; a negative number moves the cursor backward
     * @return <code>true</code> if the cursor is on a row;
     *         <code>false</code> otherwise
     * @exception SQLException if a database access error occurs;  this method
     * is called on a closed result set or the result set type is
     *            <code>TYPE_FORWARD_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    boolean relative( int rows ) throws SQLException;

    /**
     * Moves the cursor to the previous row in this
     * <code>ResultSet</code> object.
     *<p>
     * When a call to the <code>previous</code> method returns <code>false</code>,
     * the cursor is positioned before the first row.  Any invocation of a
     * <code>ResultSet</code> method which requires a current row will result in a
     * <code>SQLException</code> being thrown.
     *<p>
     * If an input stream is open for the current row, a call to the method
     * <code>previous</code> will implicitly close it.  A <code>ResultSet</code>
     *  object's warning change is cleared when a new row is read.
     *<p>
     *
     * @return <code>true</code> if the cursor is now positioned on a valid row;
     * <code>false</code> if the cursor is positioned before the first row
     * @exception SQLException if a database access error
     * occurs; this method is called on a closed result set
     * or the result set type is <code>TYPE_FORWARD_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    boolean previous() throws SQLException;

    //---------------------------------------------------------------------
    // Properties
    //---------------------------------------------------------------------

    /**
     * The constant indicating that the rows in a result set will be
     * processed in a forward direction; first-to-last.
     * This constant is used by the method <code>setFetchDirection</code>
     * as a hint to the driver, which the driver may ignore.
     * @since 1.2
     */
    int FETCH_FORWARD = 1000;

    /**
     * The constant indicating that the rows in a result set will be
     * processed in a reverse direction; last-to-first.
     * This constant is used by the method <code>setFetchDirection</code>
     * as a hint to the driver, which the driver may ignore.
     * @since 1.2
     */
    int FETCH_REVERSE = 1001;

    /**
     * The constant indicating that the order in which rows in a
     * result set will be processed is unknown.
     * This constant is used by the method <code>setFetchDirection</code>
     * as a hint to the driver, which the driver may ignore.
     */
    int FETCH_UNKNOWN = 1002;

    /**
     * Gives a hint as to the direction in which the rows in this
     * <code>ResultSet</code> object will be processed.
     * The initial value is determined by the
     * <code>Statement</code> object
     * that produced this <code>ResultSet</code> object.
     * The fetch direction may be changed at any time.
     *
     * @param direction an <code>int</code> specifying the suggested
     *        fetch direction; one of <code>ResultSet.FETCH_FORWARD</code>,
     *        <code>ResultSet.FETCH_REVERSE</code>, or
     *        <code>ResultSet.FETCH_UNKNOWN</code>
     * @exception SQLException if a database access error occurs; this
     * method is called on a closed result set or
     * the result set type is <code>TYPE_FORWARD_ONLY</code> and the fetch
     * direction is not <code>FETCH_FORWARD</code>
     * @since 1.2
     * @see Statement#setFetchDirection
     * @see #getFetchDirection
     */
    void setFetchDirection(int direction) throws SQLException;

    /**
     * Retrieves the fetch direction for this
     * <code>ResultSet</code> object.
     *
     * @return the current fetch direction for this <code>ResultSet</code> object
     * @exception SQLException if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     * @see #setFetchDirection
     */
    int getFetchDirection() throws SQLException;

    /**
     * Gives the JDBC driver a hint as to the number of rows that should
     * be fetched from the database when more rows are needed for this
     * <code>ResultSet</code> object.
     * If the fetch size specified is zero, the JDBC driver
     * ignores the value and is free to make its own best guess as to what
     * the fetch size should be.  The default value is set by the
     * <code>Statement</code> object
     * that created the result set.  The fetch size may be changed at any time.
     *
     * @param rows the number of rows to fetch
     * @exception SQLException if a database access error occurs; this method
     * is called on a closed result set or the
     * condition <code>rows >= 0 </code> is not satisfied
     * @since 1.2
     * @see #getFetchSize
     */
    void setFetchSize(int rows) throws SQLException;

    /**
     * Retrieves the fetch size for this
     * <code>ResultSet</code> object.
     *
     * @return the current fetch size for this <code>ResultSet</code> object
     * @exception SQLException if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     * @see #setFetchSize
     */
    int getFetchSize() throws SQLException;

    /**
     * The constant indicating the type for a <code>ResultSet</code> object
     * whose cursor may move only forward.
     * @since 1.2
     */
    int TYPE_FORWARD_ONLY = 1003;

    /**
     * The constant indicating the type for a <code>ResultSet</code> object
     * that is scrollable but generally not sensitive to changes to the data
     * that underlies the <code>ResultSet</code>.
     * @since 1.2
     */
    int TYPE_SCROLL_INSENSITIVE = 1004;

    /**
     * The constant indicating the type for a <code>ResultSet</code> object
     * that is scrollable and generally sensitive to changes to the data
     * that underlies the <code>ResultSet</code>.
     * @since 1.2
     */
    int TYPE_SCROLL_SENSITIVE = 1005;

    /**
     * Retrieves the type of this <code>ResultSet</code> object.
     * The type is determined by the <code>Statement</code> object
     * that created the result set.
     *
     * @return <code>ResultSet.TYPE_FORWARD_ONLY</code>,
     *         <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>,
     *         or <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
     * @exception SQLException if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     */
    int getType() throws SQLException;

    /**
     * The constant indicating the concurrency mode for a
     * <code>ResultSet</code> object that may NOT be updated.
     * @since 1.2
     */
    int CONCUR_READ_ONLY = 1007;

    /**
     * The constant indicating the concurrency mode for a
     * <code>ResultSet</code> object that may be updated.
     * @since 1.2
     */
    int CONCUR_UPDATABLE = 1008;

    /**
     * Retrieves the concurrency mode of this <code>ResultSet</code> object.
     * The concurrency used is determined by the
     * <code>Statement</code> object that created the result set.
     *
     * @return the concurrency type, either
     *         <code>ResultSet.CONCUR_READ_ONLY</code>
     *         or <code>ResultSet.CONCUR_UPDATABLE</code>
     * @exception SQLException if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     */
    int getConcurrency() throws SQLException;

    //---------------------------------------------------------------------
    // Updates
    //---------------------------------------------------------------------

    /**
     * Retrieves whether the current row has been updated.  The value returned
     * depends on whether or not the result set can detect updates.
     * <p>
     * <strong>Note:</strong> Support for the <code>rowUpdated</code> method is optional with a result set
     * concurrency of <code>CONCUR_READ_ONLY</code>
     * @return <code>true</code> if the current row is detected to
     * have been visibly updated by the owner or another; <code>false</code> otherwise
     * @exception SQLException if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @see DatabaseMetaData#updatesAreDetected
     * @since 1.2
     */
    boolean rowUpdated() throws SQLException;

    /**
     * Retrieves whether the current row has had an insertion.
     * The value returned depends on whether or not this
     * <code>ResultSet</code> object can detect visible inserts.
     * <p>
     * <strong>Note:</strong> Support for the <code>rowInserted</code> method is optional with a result set
     * concurrency of <code>CONCUR_READ_ONLY</code>
     * @return <code>true</code> if the current row is detected to
     * have been inserted; <code>false</code> otherwise
     * @exception SQLException if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     *
     * @see DatabaseMetaData#insertsAreDetected
     * @since 1.2
     */
    boolean rowInserted() throws SQLException;

    /**
     * Retrieves whether a row has been deleted.  A deleted row may leave
     * a visible "hole" in a result set.  This method can be used to
     * detect holes in a result set.  The value returned depends on whether
     * or not this <code>ResultSet</code> object can detect deletions.
     * <p>
     * <strong>Note:</strong> Support for the <code>rowDeleted</code> method is optional with a result set
     * concurrency of <code>CONCUR_READ_ONLY</code>
     * @return <code>true</code> if the current row is detected to
     * have been deleted by the owner or another; <code>false</code> otherwise
     * @exception SQLException if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     *
     * @see DatabaseMetaData#deletesAreDetected
     * @since 1.2
     */
    boolean rowDeleted() throws SQLException;

    /**
     * Updates the designated column with a <code>null</code> value.
     *
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code>
     * or <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateNull(int columnIndex) throws SQLException;

    /**
     * Updates the designated column with a <code>boolean</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateBoolean(int columnIndex, boolean x) throws SQLException;

    /**
     * Updates the designated column with a <code>byte</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateByte(int columnIndex, byte x) throws SQLException;

    /**
     * Updates the designated column with a <code>short</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateShort(int columnIndex, short x) throws SQLException;

    /**
     * Updates the designated column with an <code>int</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateInt(int columnIndex, int x) throws SQLException;

    /**
     * Updates the designated column with a <code>long</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateLong(int columnIndex, long x) throws SQLException;

    /**
     * Updates the designated column with a <code>float</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateFloat(int columnIndex, float x) throws SQLException;

    /**
     * Updates the designated column with a <code>double</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateDouble(int columnIndex, double x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.math.BigDecimal</code>
     * value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateBigDecimal(int columnIndex, BigDecimal x) throws SQLException;

    /**
     * Updates the designated column with a <code>String</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateString(int columnIndex, String x) throws SQLException;

    /**
     * Updates the designated column with a <code>byte</code> array value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateBytes(int columnIndex, byte x[]) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Date</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateDate(int columnIndex, java.sql.Date x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Time</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateTime(int columnIndex, java.sql.Time x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Timestamp</code>
     * value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateTimestamp(int columnIndex, java.sql.Timestamp x)
      throws SQLException;

    /**
     * Updates the designated column with an ascii stream value, which will have
     * the specified number of bytes.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateAsciiStream(int columnIndex,
                           java.io.InputStream x,
                           int length) throws SQLException;

    /**
     * Updates the designated column with a binary stream value, which will have
     * the specified number of bytes.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateBinaryStream(int columnIndex,
                            java.io.InputStream x,
                            int length) throws SQLException;

    /**
     * Updates the designated column with a character stream value, which will have
     * the specified number of bytes.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateCharacterStream(int columnIndex,
                             java.io.Reader x,
                             int length) throws SQLException;

    /**
     * Updates the designated column with an <code>Object</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *<p>
     * If the second argument is an <code>InputStream</code> then the stream must contain
     * the number of bytes specified by scaleOrLength.  If the second argument is a
     * <code>Reader</code> then the reader must contain the number of characters specified
     * by scaleOrLength. If these conditions are not true the driver will generate a
     * <code>SQLException</code> when the statement is executed.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @param scaleOrLength for an object of <code>java.math.BigDecimal</code> ,
     *          this is the number of digits after the decimal point. For
     *          Java Object types <code>InputStream</code> and <code>Reader</code>,
     *          this is the length
     *          of the data in the stream or reader.  For all other types,
     *          this value will be ignored.
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateObject(int columnIndex, Object x, int scaleOrLength)
      throws SQLException;

    /**
     * Updates the designated column with an <code>Object</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateObject(int columnIndex, Object x) throws SQLException;

    /**
     * Updates the designated column with a <code>null</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateNull(String columnLabel) throws SQLException;

    /**
     * Updates the designated column with a <code>boolean</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateBoolean(String columnLabel, boolean x) throws SQLException;

    /**
     * Updates the designated column with a <code>byte</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateByte(String columnLabel, byte x) throws SQLException;

    /**
     * Updates the designated column with a <code>short</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateShort(String columnLabel, short x) throws SQLException;

    /**
     * Updates the designated column with an <code>int</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateInt(String columnLabel, int x) throws SQLException;

    /**
     * Updates the designated column with a <code>long</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateLong(String columnLabel, long x) throws SQLException;

    /**
     * Updates the designated column with a <code>float </code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateFloat(String columnLabel, float x) throws SQLException;

    /**
     * Updates the designated column with a <code>double</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateDouble(String columnLabel, double x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.BigDecimal</code>
     * value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateBigDecimal(String columnLabel, BigDecimal x) throws SQLException;

    /**
     * Updates the designated column with a <code>String</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateString(String columnLabel, String x) throws SQLException;

    /**
     * Updates the designated column with a byte array value.
     *
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code>
     * or <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateBytes(String columnLabel, byte x[]) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Date</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateDate(String columnLabel, java.sql.Date x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Time</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateTime(String columnLabel, java.sql.Time x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Timestamp</code>
     * value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateTimestamp(String columnLabel, java.sql.Timestamp x)
      throws SQLException;

    /**
     * Updates the designated column with an ascii stream value, which will have
     * the specified number of bytes.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateAsciiStream(String columnLabel,
                           java.io.InputStream x,
                           int length) throws SQLException;

    /**
     * Updates the designated column with a binary stream value, which will have
     * the specified number of bytes.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateBinaryStream(String columnLabel,
                            java.io.InputStream x,
                            int length) throws SQLException;

    /**
     * Updates the designated column with a character stream value, which will have
     * the specified number of bytes.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param reader the <code>java.io.Reader</code> object containing
     *        the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateCharacterStream(String columnLabel,
                             java.io.Reader reader,
                             int length) throws SQLException;

    /**
     * Updates the designated column with an <code>Object</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *<p>
     * If the second argument is an <code>InputStream</code> then the stream must contain
     * the number of bytes specified by scaleOrLength.  If the second argument is a
     * <code>Reader</code> then the reader must contain the number of characters specified
     * by scaleOrLength. If these conditions are not true the driver will generate a
     * <code>SQLException</code> when the statement is executed.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @param scaleOrLength for an object of <code>java.math.BigDecimal</code> ,
     *          this is the number of digits after the decimal point. For
     *          Java Object types <code>InputStream</code> and <code>Reader</code>,
     *          this is the length
     *          of the data in the stream or reader.  For all other types,
     *          this value will be ignored.
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateObject(String columnLabel, Object x, int scaleOrLength)
      throws SQLException;

    /**
     * Updates the designated column with an <code>Object</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateObject(String columnLabel, Object x) throws SQLException;

    /**
     * Inserts the contents of the insert row into this
     * <code>ResultSet</code> object and into the database.
     * The cursor must be on the insert row when this method is called.
     *
     * @exception SQLException if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>,
     * this method is called on a closed result set,
     * if this method is called when the cursor is not on the insert row,
     * or if not all of non-nullable columns in
     * the insert row have been given a non-null value
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void insertRow() throws SQLException;

    /**
     * Updates the underlying database with the new contents of the
     * current row of this <code>ResultSet</code> object.
     * This method cannot be called when the cursor is on the insert row.
     *
     * @exception SQLException if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>;
     *  this method is called on a closed result set or
     * if this method is called when the cursor is on the insert row
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void updateRow() throws SQLException;

    /**
     * Deletes the current row from this <code>ResultSet</code> object
     * and from the underlying database.  This method cannot be called when
     * the cursor is on the insert row.
     *
     * @exception SQLException if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>;
     * this method is called on a closed result set
     * or if this method is called when the cursor is on the insert row
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void deleteRow() throws SQLException;

    /**
     * Refreshes the current row with its most recent value in
     * the database.  This method cannot be called when
     * the cursor is on the insert row.
     *
     * <P>The <code>refreshRow</code> method provides a way for an
     * application to
     * explicitly tell the JDBC driver to refetch a row(s) from the
     * database.  An application may want to call <code>refreshRow</code> when
     * caching or prefetching is being done by the JDBC driver to
     * fetch the latest value of a row from the database.  The JDBC driver
     * may actually refresh multiple rows at once if the fetch size is
     * greater than one.
     *
     * <P> All values are refetched subject to the transaction isolation
     * level and cursor sensitivity.  If <code>refreshRow</code> is called after
     * calling an updater method, but before calling
     * the method <code>updateRow</code>, then the
     * updates made to the row are lost.  Calling the method
     * <code>refreshRow</code> frequently will likely slow performance.
     *
     * @exception SQLException if a database access error
     * occurs; this method is called on a closed result set;
     * the result set type is <code>TYPE_FORWARD_ONLY</code> or if this
     * method is called when the cursor is on the insert row
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method or this method is not supported for the specified result
     * set type and result set concurrency.
     * @since 1.2
     */
    void refreshRow() throws SQLException;

    /**
     * Cancels the updates made to the current row in this
     * <code>ResultSet</code> object.
     * This method may be called after calling an
     * updater method(s) and before calling
     * the method <code>updateRow</code> to roll back
     * the updates made to a row.  If no updates have been made or
     * <code>updateRow</code> has already been called, this method has no
     * effect.
     *
     * @exception SQLException if a database access error
     *            occurs; this method is called on a closed result set;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or if this method is called when the cursor is
     *            on the insert row
      * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void cancelRowUpdates() throws SQLException;

    /**
     * Moves the cursor to the insert row.  The current cursor position is
     * remembered while the cursor is positioned on the insert row.
     *
     * The insert row is a special row associated with an updatable
     * result set.  It is essentially a buffer where a new row may
     * be constructed by calling the updater methods prior to
     * inserting the row into the result set.
     *
     * Only the updater, getter,
     * and <code>insertRow</code> methods may be
     * called when the cursor is on the insert row.  All of the columns in
     * a result set must be given a value each time this method is
     * called before calling <code>insertRow</code>.
     * An updater method must be called before a
     * getter method can be called on a column value.
     *
     * @exception SQLException if a database access error occurs; this
     * method is called on a closed result set
     * or the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void moveToInsertRow() throws SQLException;

    /**
     * Moves the cursor to the remembered cursor position, usually the
     * current row.  This method has no effect if the cursor is not on
     * the insert row.
     *
     * @exception SQLException if a database access error occurs; this
     * method is called on a closed result set
     *  or the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    void moveToCurrentRow() throws SQLException;

    /**
     * Retrieves the <code>Statement</code> object that produced this
     * <code>ResultSet</code> object.
     * If the result set was generated some other way, such as by a
     * <code>DatabaseMetaData</code> method, this method  may return
     * <code>null</code>.
     *
     * @return the <code>Statment</code> object that produced
     * this <code>ResultSet</code> object or <code>null</code>
     * if the result set was produced some other way
     * @exception SQLException if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     */
    Statement getStatement() throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as an <code>Object</code>
     * in the Java programming language.
     * If the value is an SQL <code>NULL</code>,
     * the driver returns a Java <code>null</code>.
     * This method uses the given <code>Map</code> object
     * for the custom mapping of the
     * SQL structured or distinct type that is being retrieved.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param map a <code>java.util.Map</code> object that contains the mapping
     * from SQL type names to classes in the Java programming language
     * @return an <code>Object</code> in the Java programming language
     * representing the SQL value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Object getObject(int columnIndex, java.util.Map<String,Class<?>> map)
        throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>Ref</code> object
     * in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return a <code>Ref</code> object representing an SQL <code>REF</code>
     *         value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Ref getRef(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>Blob</code> object
     * in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return a <code>Blob</code> object representing the SQL
     *         <code>BLOB</code> value in the specified column
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Blob getBlob(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>Clob</code> object
     * in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return a <code>Clob</code> object representing the SQL
     *         <code>CLOB</code> value in the specified column
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Clob getClob(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as an <code>Array</code> object
     * in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return an <code>Array</code> object representing the SQL
     *         <code>ARRAY</code> value in the specified column
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
      * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Array getArray(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as an <code>Object</code>
     * in the Java programming language.
     * If the value is an SQL <code>NULL</code>,
     * the driver returns a Java <code>null</code>.
     * This method uses the specified <code>Map</code> object for
     * custom mapping if appropriate.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param map a <code>java.util.Map</code> object that contains the mapping
     * from SQL type names to classes in the Java programming language
     * @return an <code>Object</code> representing the SQL value in the
     *         specified column
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Object getObject(String columnLabel, java.util.Map<String,Class<?>> map)
      throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>Ref</code> object
     * in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a <code>Ref</code> object representing the SQL <code>REF</code>
     *         value in the specified column
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
      * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Ref getRef(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>Blob</code> object
     * in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a <code>Blob</code> object representing the SQL <code>BLOB</code>
     *         value in the specified column
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Blob getBlob(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>Clob</code> object
     * in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a <code>Clob</code> object representing the SQL <code>CLOB</code>
     * value in the specified column
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
      * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Clob getClob(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as an <code>Array</code> object
     * in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return an <code>Array</code> object representing the SQL <code>ARRAY</code> value in
     *         the specified column
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Array getArray(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>java.sql.Date</code> object
     * in the Java programming language.
     * This method uses the given calendar to construct an appropriate millisecond
     * value for the date if the underlying database does not store
     * timezone information.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param cal the <code>java.util.Calendar</code> object
     * to use in constructing the date
     * @return the column value as a <code>java.sql.Date</code> object;
     * if the value is SQL <code>NULL</code>,
     * the value returned is <code>null</code> in the Java programming language
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     */
    java.sql.Date getDate(int columnIndex, Calendar cal) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>java.sql.Date</code> object
     * in the Java programming language.
     * This method uses the given calendar to construct an appropriate millisecond
     * value for the date if the underlying database does not store
     * timezone information.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param cal the <code>java.util.Calendar</code> object
     * to use in constructing the date
     * @return the column value as a <code>java.sql.Date</code> object;
     * if the value is SQL <code>NULL</code>,
     * the value returned is <code>null</code> in the Java programming language
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     */
    java.sql.Date getDate(String columnLabel, Calendar cal) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>java.sql.Time</code> object
     * in the Java programming language.
     * This method uses the given calendar to construct an appropriate millisecond
     * value for the time if the underlying database does not store
     * timezone information.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param cal the <code>java.util.Calendar</code> object
     * to use in constructing the time
     * @return the column value as a <code>java.sql.Time</code> object;
     * if the value is SQL <code>NULL</code>,
     * the value returned is <code>null</code> in the Java programming language
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     */
    java.sql.Time getTime(int columnIndex, Calendar cal) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>java.sql.Time</code> object
     * in the Java programming language.
     * This method uses the given calendar to construct an appropriate millisecond
     * value for the time if the underlying database does not store
     * timezone information.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param cal the <code>java.util.Calendar</code> object
     * to use in constructing the time
     * @return the column value as a <code>java.sql.Time</code> object;
     * if the value is SQL <code>NULL</code>,
     * the value returned is <code>null</code> in the Java programming language
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     */
    java.sql.Time getTime(String columnLabel, Calendar cal) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>java.sql.Timestamp</code> object
     * in the Java programming language.
     * This method uses the given calendar to construct an appropriate millisecond
     * value for the timestamp if the underlying database does not store
     * timezone information.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param cal the <code>java.util.Calendar</code> object
     * to use in constructing the timestamp
     * @return the column value as a <code>java.sql.Timestamp</code> object;
     * if the value is SQL <code>NULL</code>,
     * the value returned is <code>null</code> in the Java programming language
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     */
    java.sql.Timestamp getTimestamp(int columnIndex, Calendar cal)
      throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>java.sql.Timestamp</code> object
     * in the Java programming language.
     * This method uses the given calendar to construct an appropriate millisecond
     * value for the timestamp if the underlying database does not store
     * timezone information.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param cal the <code>java.util.Calendar</code> object
     * to use in constructing the date
     * @return the column value as a <code>java.sql.Timestamp</code> object;
     * if the value is SQL <code>NULL</code>,
     * the value returned is <code>null</code> in the Java programming language
     * @exception SQLException if the columnLabel is not valid or
     * if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.2
     */
    java.sql.Timestamp getTimestamp(String columnLabel, Calendar cal)
      throws SQLException;

    //-------------------------- JDBC 3.0 ----------------------------------------

    /**
     * The constant indicating that open <code>ResultSet</code> objects with this
     * holdability will remain open when the current transaction is commited.
     *
     * @since 1.4
     */
    int HOLD_CURSORS_OVER_COMMIT = 1;

    /**
     * The constant indicating that open <code>ResultSet</code> objects with this
     * holdability will be closed when the current transaction is commited.
     *
     * @since 1.4
     */
    int CLOSE_CURSORS_AT_COMMIT = 2;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>java.net.URL</code>
     * object in the Java programming language.
     *
     * @param columnIndex the index of the column 1 is the first, 2 is the second,...
     * @return the column value as a <code>java.net.URL</code> object;
     * if the value is SQL <code>NULL</code>,
     * the value returned is <code>null</code> in the Java programming language
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs; this method
     * is called on a closed result set or if a URL is malformed
      * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    java.net.URL getURL(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>java.net.URL</code>
     * object in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value as a <code>java.net.URL</code> object;
     * if the value is SQL <code>NULL</code>,
     * the value returned is <code>null</code> in the Java programming language
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs; this method
     * is called on a closed result set or if a URL is malformed
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    java.net.URL getURL(String columnLabel) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Ref</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    void updateRef(int columnIndex, java.sql.Ref x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Ref</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    void updateRef(String columnLabel, java.sql.Ref x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Blob</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    void updateBlob(int columnIndex, java.sql.Blob x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Blob</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    void updateBlob(String columnLabel, java.sql.Blob x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Clob</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    void updateClob(int columnIndex, java.sql.Clob x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Clob</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    void updateClob(String columnLabel, java.sql.Clob x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Array</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    void updateArray(int columnIndex, java.sql.Array x) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.Array</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    void updateArray(String columnLabel, java.sql.Array x) throws SQLException;

    //------------------------- JDBC 4.0 -----------------------------------

    /**
     * Retrieves the value of the designated column in the current row of this
     * <code>ResultSet</code> object as a <code>java.sql.RowId</code> object in the Java
     * programming language.
     *
     * @param columnIndex the first column is 1, the second 2, ...
     * @return the column value; if the value is a SQL <code>NULL</code> the
     *     value returned is <code>null</code>
     * @throws SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    RowId getRowId(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row of this
     * <code>ResultSet</code> object as a <code>java.sql.RowId</code> object in the Java
     * programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value ; if the value is a SQL <code>NULL</code> the
     *     value returned is <code>null</code>
     * @throws SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    RowId getRowId(String columnLabel) throws SQLException;

    /**
     * Updates the designated column with a <code>RowId</code> value. The updater
     * methods are used to update column values in the current row or the insert
     * row. The updater methods do not update the underlying database; instead
     * the <code>updateRow</code> or <code>insertRow</code> methods are called
     * to update the database.
     *
     * @param columnIndex the first column is 1, the second 2, ...
     * @param x the column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateRowId(int columnIndex, RowId x) throws SQLException;

    /**
     * Updates the designated column with a <code>RowId</code> value. The updater
     * methods are used to update column values in the current row or the insert
     * row. The updater methods do not update the underlying database; instead
     * the <code>updateRow</code> or <code>insertRow</code> methods are called
     * to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateRowId(String columnLabel, RowId x) throws SQLException;

    /**
     * Retrieves the holdability of this <code>ResultSet</code> object
     * @return  either <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code>
     * @throws SQLException if a database access error occurs
     * or this method is called on a closed result set
     * @since 1.6
     */
    int getHoldability() throws SQLException;

    /**
     * Retrieves whether this <code>ResultSet</code> object has been closed. A <code>ResultSet</code> is closed if the
     * method close has been called on it, or if it is automatically closed.
     *
     * @return true if this <code>ResultSet</code> object is closed; false if it is still open
     * @throws SQLException if a database access error occurs
     * @since 1.6
     */
    boolean isClosed() throws SQLException;

    /**
     * Updates the designated column with a <code>String</code> value.
     * It is intended for use when updating <code>NCHAR</code>,<code>NVARCHAR</code>
     * and <code>LONGNVARCHAR</code> columns.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second 2, ...
     * @param nString the value for the column to be updated
     * @throws SQLException if the columnIndex is not valid;
     * if the driver does not support national
     *         character sets;  if the driver can detect that a data conversion
     *  error could occur; this method is called on a closed result set;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or if a database access error occurs
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNString(int columnIndex, String nString) throws SQLException;

    /**
     * Updates the designated column with a <code>String</code> value.
     * It is intended for use when updating <code>NCHAR</code>,<code>NVARCHAR</code>
     * and <code>LONGNVARCHAR</code> columns.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param nString the value for the column to be updated
     * @throws SQLException if the columnLabel is not valid;
     * if the driver does not support national
     *         character sets;  if the driver can detect that a data conversion
     *  error could occur; this method is called on a closed result set;
     * the result set concurrency is <CODE>CONCUR_READ_ONLY</code>
     *  or if a database access error occurs
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNString(String columnLabel, String nString) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.NClob</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second 2, ...
     * @param nClob the value for the column to be updated
     * @throws SQLException if the columnIndex is not valid;
     * if the driver does not support national
     *         character sets;  if the driver can detect that a data conversion
     *  error could occur; this method is called on a closed result set;
     * if a database access error occurs or
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNClob(int columnIndex, NClob nClob) throws SQLException;

    /**
     * Updates the designated column with a <code>java.sql.NClob</code> value.
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param nClob the value for the column to be updated
     * @throws SQLException if the columnLabel is not valid;
     * if the driver does not support national
     *         character sets;  if the driver can detect that a data conversion
     *  error could occur; this method is called on a closed result set;
     *  if a database access error occurs or
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNClob(String columnLabel, NClob nClob) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>NClob</code> object
     * in the Java programming language.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return a <code>NClob</code> object representing the SQL
     *         <code>NCLOB</code> value in the specified column
     * @exception SQLException if the columnIndex is not valid;
     * if the driver does not support national
     *         character sets;  if the driver can detect that a data conversion
     *  error could occur; this method is called on a closed result set
     * or if a database access error occurs
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    NClob getNClob(int columnIndex) throws SQLException;

  /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>NClob</code> object
     * in the Java programming language.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a <code>NClob</code> object representing the SQL <code>NCLOB</code>
     * value in the specified column
     * @exception SQLException if the columnLabel is not valid;
   * if the driver does not support national
     *         character sets;  if the driver can detect that a data conversion
     *  error could occur; this method is called on a closed result set
     * or if a database access error occurs
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    NClob getNClob(String columnLabel) throws SQLException;

    /**
     * Retrieves the value of the designated column in  the current row of
     *  this <code>ResultSet</code> as a
     * <code>java.sql.SQLXML</code> object in the Java programming language.
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return a <code>SQLXML</code> object that maps an <code>SQL XML</code> value
     * @throws SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    SQLXML getSQLXML(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in  the current row of
     *  this <code>ResultSet</code> as a
     * <code>java.sql.SQLXML</code> object in the Java programming language.
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a <code>SQLXML</code> object that maps an <code>SQL XML</code> value
     * @throws SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    SQLXML getSQLXML(String columnLabel) throws SQLException;
    /**
     * Updates the designated column with a <code>java.sql.SQLXML</code> value.
     * The updater
     * methods are used to update column values in the current row or the insert
     * row. The updater methods do not update the underlying database; instead
     * the <code>updateRow</code> or <code>insertRow</code> methods are called
     * to update the database.
     * <p>
     *
     * @param columnIndex the first column is 1, the second 2, ...
     * @param xmlObject the value for the column to be updated
     * @throws SQLException if the columnIndex is not valid;
     * if a database access error occurs; this method
     *  is called on a closed result set;
     * the <code>java.xml.transform.Result</code>,
     *  <code>Writer</code> or <code>OutputStream</code> has not been closed
     * for the <code>SQLXML</code> object;
     *  if there is an error processing the XML value or
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>.  The <code>getCause</code> method
     *  of the exception may provide a more detailed exception, for example, if the
     *  stream does not contain valid XML.
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateSQLXML(int columnIndex, SQLXML xmlObject) throws SQLException;
    /**
     * Updates the designated column with a <code>java.sql.SQLXML</code> value.
     * The updater
     * methods are used to update column values in the current row or the insert
     * row. The updater methods do not update the underlying database; instead
     * the <code>updateRow</code> or <code>insertRow</code> methods are called
     * to update the database.
     * <p>
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param xmlObject the column value
     * @throws SQLException if the columnLabel is not valid;
     * if a database access error occurs; this method
     *  is called on a closed result set;
     * the <code>java.xml.transform.Result</code>,
     *  <code>Writer</code> or <code>OutputStream</code> has not been closed
     * for the <code>SQLXML</code> object;
     *  if there is an error processing the XML value or
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>.  The <code>getCause</code> method
     *  of the exception may provide a more detailed exception, for example, if the
     *  stream does not contain valid XML.
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateSQLXML(String columnLabel, SQLXML xmlObject) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>String</code> in the Java programming language.
     * It is intended for use when
     * accessing  <code>NCHAR</code>,<code>NVARCHAR</code>
     * and <code>LONGNVARCHAR</code> columns.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    String getNString(int columnIndex) throws SQLException;


    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as
     * a <code>String</code> in the Java programming language.
     * It is intended for use when
     * accessing  <code>NCHAR</code>,<code>NVARCHAR</code>
     * and <code>LONGNVARCHAR</code> columns.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return the column value; if the value is SQL <code>NULL</code>, the
     * value returned is <code>null</code>
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    String getNString(String columnLabel) throws SQLException;


    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a
     * <code>java.io.Reader</code> object.
     * It is intended for use when
     * accessing  <code>NCHAR</code>,<code>NVARCHAR</code>
     * and <code>LONGNVARCHAR</code> columns.
     *
     * @return a <code>java.io.Reader</code> object that contains the column
     * value; if the value is SQL <code>NULL</code>, the value returned is
     * <code>null</code> in the Java programming language.
     * @param columnIndex the first column is 1, the second is 2, ...
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    java.io.Reader getNCharacterStream(int columnIndex) throws SQLException;

    /**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a
     * <code>java.io.Reader</code> object.
     * It is intended for use when
     * accessing  <code>NCHAR</code>,<code>NVARCHAR</code>
     * and <code>LONGNVARCHAR</code> columns.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @return a <code>java.io.Reader</code> object that contains the column
     * value; if the value is SQL <code>NULL</code>, the value returned is
     * <code>null</code> in the Java programming language
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    java.io.Reader getNCharacterStream(String columnLabel) throws SQLException;

    /**
     * Updates the designated column with a character stream value, which will have
     * the specified number of bytes.   The
     * driver does the necessary conversion from Java character format to
     * the national character set in the database.
     * It is intended for use when
     * updating  <code>NCHAR</code>,<code>NVARCHAR</code>
     * and <code>LONGNVARCHAR</code> columns.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code> or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNCharacterStream(int columnIndex,
                             java.io.Reader x,
                             long length) throws SQLException;

    /**
     * Updates the designated column with a character stream value, which will have
     * the specified number of bytes.  The
     * driver does the necessary conversion from Java character format to
     * the national character set in the database.
     * It is intended for use when
     * updating  <code>NCHAR</code>,<code>NVARCHAR</code>
     * and <code>LONGNVARCHAR</code> columns.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param reader the <code>java.io.Reader</code> object containing
     *        the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code> or this method is called on a closed result set
      * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNCharacterStream(String columnLabel,
                             java.io.Reader reader,
                             long length) throws SQLException;
    /**
     * Updates the designated column with an ascii stream value, which will have
     * the specified number of bytes.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateAsciiStream(int columnIndex,
                           java.io.InputStream x,
                           long length) throws SQLException;

    /**
     * Updates the designated column with a binary stream value, which will have
     * the specified number of bytes.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateBinaryStream(int columnIndex,
                            java.io.InputStream x,
                            long length) throws SQLException;

    /**
     * Updates the designated column with a character stream value, which will have
     * the specified number of bytes.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateCharacterStream(int columnIndex,
                             java.io.Reader x,
                             long length) throws SQLException;
    /**
     * Updates the designated column with an ascii stream value, which will have
     * the specified number of bytes.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateAsciiStream(String columnLabel,
                           java.io.InputStream x,
                           long length) throws SQLException;

    /**
     * Updates the designated column with a binary stream value, which will have
     * the specified number of bytes.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateBinaryStream(String columnLabel,
                            java.io.InputStream x,
                            long length) throws SQLException;

    /**
     * Updates the designated column with a character stream value, which will have
     * the specified number of bytes.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param reader the <code>java.io.Reader</code> object containing
     *        the new column value
     * @param length the length of the stream
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateCharacterStream(String columnLabel,
                             java.io.Reader reader,
                             long length) throws SQLException;
    /**
     * Updates the designated column using the given input stream, which
     * will have the specified number of bytes.
     *
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param inputStream An object that contains the data to set the parameter
     * value to.
     * @param length the number of bytes in the parameter data.
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateBlob(int columnIndex, InputStream inputStream, long length) throws SQLException;

    /**
     * Updates the designated column using the given input stream, which
     * will have the specified number of bytes.
     *
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param inputStream An object that contains the data to set the parameter
     * value to.
     * @param length the number of bytes in the parameter data.
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateBlob(String columnLabel, InputStream inputStream, long length) throws SQLException;

    /**
     * Updates the designated column using the given <code>Reader</code>
     * object, which is the given number of characters long.
     * When a very large UNICODE value is input to a <code>LONGVARCHAR</code>
     * parameter, it may be more practical to send it via a
     * <code>java.io.Reader</code> object. The JDBC driver will
     * do any necessary conversion from UNICODE to the database char format.
     *
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param reader An object that contains the data to set the parameter value to.
     * @param length the number of characters in the parameter data.
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateClob(int columnIndex,  Reader reader, long length) throws SQLException;

    /**
     * Updates the designated column using the given <code>Reader</code>
     * object, which is the given number of characters long.
     * When a very large UNICODE value is input to a <code>LONGVARCHAR</code>
     * parameter, it may be more practical to send it via a
     * <code>java.io.Reader</code> object.  The JDBC driver will
     * do any necessary conversion from UNICODE to the database char format.
     *
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param reader An object that contains the data to set the parameter value to.
     * @param length the number of characters in the parameter data.
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateClob(String columnLabel,  Reader reader, long length) throws SQLException;
   /**
     * Updates the designated column using the given <code>Reader</code>
     * object, which is the given number of characters long.
     * When a very large UNICODE value is input to a <code>LONGVARCHAR</code>
     * parameter, it may be more practical to send it via a
     * <code>java.io.Reader</code> object. The JDBC driver will
     * do any necessary conversion from UNICODE to the database char format.
     *
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnIndex the first column is 1, the second 2, ...
     * @param reader An object that contains the data to set the parameter value to.
     * @param length the number of characters in the parameter data.
     * @throws SQLException if the columnIndex is not valid;
    * if the driver does not support national
     *         character sets;  if the driver can detect that a data conversion
     *  error could occur; this method is called on a closed result set,
     * if a database access error occurs or
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNClob(int columnIndex,  Reader reader, long length) throws SQLException;

    /**
     * Updates the designated column using the given <code>Reader</code>
     * object, which is the given number of characters long.
     * When a very large UNICODE value is input to a <code>LONGVARCHAR</code>
     * parameter, it may be more practical to send it via a
     * <code>java.io.Reader</code> object. The JDBC driver will
     * do any necessary conversion from UNICODE to the database char format.
     *
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param reader An object that contains the data to set the parameter value to.
     * @param length the number of characters in the parameter data.
     * @throws SQLException if the columnLabel is not valid;
     * if the driver does not support national
     *         character sets;  if the driver can detect that a data conversion
     *  error could occur; this method is called on a closed result set;
     *  if a database access error occurs or
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNClob(String columnLabel,  Reader reader, long length) throws SQLException;

    //---

    /**
     * Updates the designated column with a character stream value.
     * The data will be read from the stream
     * as needed until end-of-stream is reached.  The
     * driver does the necessary conversion from Java character format to
     * the national character set in the database.
     * It is intended for use when
     * updating  <code>NCHAR</code>,<code>NVARCHAR</code>
     * and <code>LONGNVARCHAR</code> columns.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateNCharacterStream</code> which takes a length parameter.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code> or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNCharacterStream(int columnIndex,
                             java.io.Reader x) throws SQLException;

    /**
     * Updates the designated column with a character stream value.
     * The data will be read from the stream
     * as needed until end-of-stream is reached.  The
     * driver does the necessary conversion from Java character format to
     * the national character set in the database.
     * It is intended for use when
     * updating  <code>NCHAR</code>,<code>NVARCHAR</code>
     * and <code>LONGNVARCHAR</code> columns.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateNCharacterStream</code> which takes a length parameter.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param reader the <code>java.io.Reader</code> object containing
     *        the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code> or this method is called on a closed result set
      * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNCharacterStream(String columnLabel,
                             java.io.Reader reader) throws SQLException;
    /**
     * Updates the designated column with an ascii stream value.
     * The data will be read from the stream
     * as needed until end-of-stream is reached.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateAsciiStream</code> which takes a length parameter.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateAsciiStream(int columnIndex,
                           java.io.InputStream x) throws SQLException;

    /**
     * Updates the designated column with a binary stream value.
     * The data will be read from the stream
     * as needed until end-of-stream is reached.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateBinaryStream</code> which takes a length parameter.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateBinaryStream(int columnIndex,
                            java.io.InputStream x) throws SQLException;

    /**
     * Updates the designated column with a character stream value.
     * The data will be read from the stream
     * as needed until end-of-stream is reached.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateCharacterStream</code> which takes a length parameter.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param x the new column value
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateCharacterStream(int columnIndex,
                             java.io.Reader x) throws SQLException;
    /**
     * Updates the designated column with an ascii stream value.
     * The data will be read from the stream
     * as needed until end-of-stream is reached.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateAsciiStream</code> which takes a length parameter.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateAsciiStream(String columnLabel,
                           java.io.InputStream x) throws SQLException;

    /**
     * Updates the designated column with a binary stream value.
     * The data will be read from the stream
     * as needed until end-of-stream is reached.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateBinaryStream</code> which takes a length parameter.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param x the new column value
     * @exception SQLException if the columnLabel is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateBinaryStream(String columnLabel,
                            java.io.InputStream x) throws SQLException;

    /**
     * Updates the designated column with a character stream value.
     * The data will be read from the stream
     * as needed until end-of-stream is reached.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateCharacterStream</code> which takes a length parameter.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param reader the <code>java.io.Reader</code> object containing
     *        the new column value
     * @exception SQLException if the columnLabel is not valid; if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateCharacterStream(String columnLabel,
                             java.io.Reader reader) throws SQLException;
    /**
     * Updates the designated column using the given input stream. The data will be read from the stream
     * as needed until end-of-stream is reached.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateBlob</code> which takes a length parameter.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param inputStream An object that contains the data to set the parameter
     * value to.
     * @exception SQLException if the columnIndex is not valid; if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateBlob(int columnIndex, InputStream inputStream) throws SQLException;

    /**
     * Updates the designated column using the given input stream. The data will be read from the stream
     * as needed until end-of-stream is reached.
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     *   <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateBlob</code> which takes a length parameter.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param inputStream An object that contains the data to set the parameter
     * value to.
     * @exception SQLException if the columnLabel is not valid; if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateBlob(String columnLabel, InputStream inputStream) throws SQLException;

    /**
     * Updates the designated column using the given <code>Reader</code>
     * object.
     *  The data will be read from the stream
     * as needed until end-of-stream is reached.  The JDBC driver will
     * do any necessary conversion from UNICODE to the database char format.
     *
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     *   <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateClob</code> which takes a length parameter.
     *
     * @param columnIndex the first column is 1, the second is 2, ...
     * @param reader An object that contains the data to set the parameter value to.
     * @exception SQLException if the columnIndex is not valid;
     * if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateClob(int columnIndex,  Reader reader) throws SQLException;

    /**
     * Updates the designated column using the given <code>Reader</code>
     * object.
     *  The data will be read from the stream
     * as needed until end-of-stream is reached.  The JDBC driver will
     * do any necessary conversion from UNICODE to the database char format.
     *
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateClob</code> which takes a length parameter.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param reader An object that contains the data to set the parameter value to.
     * @exception SQLException if the columnLabel is not valid; if a database access error occurs;
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * or this method is called on a closed result set
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateClob(String columnLabel,  Reader reader) throws SQLException;
   /**
     * Updates the designated column using the given <code>Reader</code>
     *
     * The data will be read from the stream
     * as needed until end-of-stream is reached.  The JDBC driver will
     * do any necessary conversion from UNICODE to the database char format.
     *
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateNClob</code> which takes a length parameter.
     *
     * @param columnIndex the first column is 1, the second 2, ...
     * @param reader An object that contains the data to set the parameter value to.
     * @throws SQLException if the columnIndex is not valid;
    * if the driver does not support national
     *         character sets;  if the driver can detect that a data conversion
     *  error could occur; this method is called on a closed result set,
     * if a database access error occurs or
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNClob(int columnIndex,  Reader reader) throws SQLException;

    /**
     * Updates the designated column using the given <code>Reader</code>
     * object.
     * The data will be read from the stream
     * as needed until end-of-stream is reached.  The JDBC driver will
     * do any necessary conversion from UNICODE to the database char format.
     *
     * <p>
     * The updater methods are used to update column values in the
     * current row or the insert row.  The updater methods do not
     * update the underlying database; instead the <code>updateRow</code> or
     * <code>insertRow</code> methods are called to update the database.
     *
     * <P><B>Note:</B> Consult your JDBC driver documentation to determine if
     * it might be more efficient to use a version of
     * <code>updateNClob</code> which takes a length parameter.
     *
     * @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
     * @param reader An object that contains the data to set the parameter value to.
     * @throws SQLException if the columnLabel is not valid; if the driver does not support national
     *         character sets;  if the driver can detect that a data conversion
     *  error could occur; this method is called on a closed result set;
     *  if a database access error occurs or
     * the result set concurrency is <code>CONCUR_READ_ONLY</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.6
     */
    void updateNClob(String columnLabel,  Reader reader) throws SQLException;

}