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NAME

       ROLLBACK - abort the current transaction


SYNOPSIS

       ROLLBACK [ WORK | TRANSACTION ]


DESCRIPTION

       ROLLBACK  rolls back the current transaction and causes all the updates
       made by the transaction to be discarded.


PARAMETERS

       WORK

       TRANSACTION
              Optional key words. They have no effect.


NOTES

       Use COMMIT [commit(l)] to successfully terminate a transaction.

       Issuing ROLLBACK when not inside a transaction does  no  harm,  but  it
       will provoke a warning message.


EXAMPLES

       To abort all changes:

       ROLLBACK;


COMPATIBILITY

       The  SQL  standard  only  specifies the two forms ROLLBACK and ROLLBACK
       WORK. Otherwise, this command is fully conforming.


SEE ALSO

       BEGIN [begin(l)], COMMIT  [commit(l)],  ROLLBACK  TO  SAVEPOINT  [roll-
       back_to_savepoint(l)]

SQL - Language Statements         2005-11-05                        ROLLBACK()

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