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Oracle® Database Administrator's Guide
11g Release 2 (11.2)

Part Number E17120-05
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Naming Transactions

You can name a transaction. This is useful for identifying a specific distributed transaction and replaces the use of the COMMIT COMMENT statement for this purpose.

To name a transaction, use the SET TRANSACTION...NAME statement. For example:

SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
     NAME 'update inventory checkpoint 0';

This example shows that the user started a new transaction with isolation level equal to SERIALIZABLE and named it 'update inventory checkpoint 0'.

For distributed transactions, the name is sent to participating sites when a transaction is committed. If a COMMIT COMMENT exists, it is ignored when a transaction name exists.

The transaction name is displayed in the NAME column of the V$TRANSACTION view, and in the TRAN_COMMENT field of the DBA_2PC_PENDING view when the transaction is committed.