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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


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.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
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