This documentation is archived and is not being maintained.

OracleLob.BeginBatch Method

Prevents server-side triggers from firing while performing multiple read operations.

Namespace:  System.Data.OracleClient
Assembly:  System.Data.OracleClient (in System.Data.OracleClient.dll)

Public Sub BeginBatch
Dim instance As OracleLob



The connection is closed.


The object was closed or disposed.


An Oracle error has occurred.

Opens the LOB in ReadOnly mode; therefore, the LOB can only be read from, not written to, until the corresponding call to EndBatch. To perform batch writes to the LOB, call BeginBatch with ReadWrite.

Calling BeginBatch more than one time within the same transaction currently throws the Oracle "ORA-22293: LOB already opened in the same transaction" error. In addition, if you obtain the LOB using another OracleDataReader, and the original caller has not called the EndBatch method, the same error is generated. Therefore, you must call the EndBatch method when you are finished using the OracleLob.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1