BEA Systems, Inc.

WebLogic Server 5.1.0 API Reference

Class Statement

Direct Known Subclasses:

public class Statement
extends weblogic.jdbcbase.oci.Statement
implements java.sql.Statement

This class contains WebLogic extensions to JDBC to support parsing of SQL statements and adjusting of the fetch size. Only the extensions are documented here.

Copyright (c) 1999 by BEA WebXpress. All Rights Resrved.
Copyright © 2000 BEA Systems, Inc. All Rights Reserved.

Fields inherited from class weblogic.jdbcbase.oci.Statement
closed, connection, current_queryresult, cursorparams, doExtendedSQL, fetchsize, jdk_codeset, lastvalnull, maxfieldsize, maxrows, nullvalid, ociconn, ocicursor, updatecnt, warnings
Constructor Summary
Method Summary
 void fetchSize(int size)
          Allows tuning of the size of prefetch array used for Oracle row results.
Methods inherited from class weblogic.jdbcbase.oci.Statement
addBatch, addBatch, addWarning, cancel, checkIfArgNull, checkIfClosed, checkJdbcSql, clearBatch, clearParameters, clearWarnings, close_cursor, close, execute, execute, executeBatch, executeQuery, executeQuery, executeUpdate, executeUpdate, fetchSize, finalize, getBigDecimal, getBoolean, getByte, getBytes, getDate, getDouble, getFloat, getInt, getLong, getMaxFieldSize, getMaxRows, getMoreResults, getObject, getQueryTimeout, getResultSet, getResultSet, getShort, getString, getTime, getTimestamp, getUpdateCount, getWarnings, parse, registerOutParameter, registerOutParameter, setAsciiStream, setBigDecimal, setBinaryStream, setBoolean, setByte, setBytes, setCursorName, setDate, setDate, setDouble, setEscapeProcessing, setFloat, setInt, setLong, setMaxFieldSize, setMaxRows, setNull, setObject, setObject, setObject, setQueryTimeout, setReader, setShort, setStream, setString, setTime, setTime, setTimestamp, setTimestamp, setUnicodeStream, wasNull
Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail


public Statement()
Method Detail


public void fetchSize(int size)
Allows tuning of the size of prefetch array used for Oracle row results. Oracle provides the means to do data prefetch in batches, which decreases network traffic and latency for row requests.

The default batch size is 100. Memory for 100 rows is allocated in the native stack for every query. For queries that need fewer rows, this size can be adjusted appropriately. This saves on the swappable image size of the application and will benefit performance if only as many rows as needed are fetched.

size - Number of rows for prefetch
fetchSize in class weblogic.jdbcbase.oci.Statement

Documentation is available at