NAME

       ROLLBACK - abort the current transaction

SYNOPSIS

       ROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]

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.

       AND CHAIN
           If AND CHAIN is specified, a new (not aborted) transaction is immediately started with
           the same transaction characteristics (see SET TRANSACTION (SET_TRANSACTION(7))) as the
           just finished one. Otherwise, no new transaction is started.

NOTES

       Use COMMIT to successfully terminate a transaction.

       Issuing ROLLBACK outside of a transaction block emits a warning and otherwise has no
       effect.  ROLLBACK AND CHAIN outside of a transaction block is an error.

EXAMPLES

       To abort all changes:

           ROLLBACK;

COMPATIBILITY

       The command ROLLBACK conforms to the SQL standard. The form ROLLBACK TRANSACTION is a
       PostgreSQL extension.

SEE ALSO

       BEGIN(7), COMMIT(7), ROLLBACK TO SAVEPOINT (ROLLBACK_TO_SAVEPOINT(7))