ROLLBACK

Aborts 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 to successfully end the current transaction.

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

Examples

To discard all changes made in the current transaction:

ROLLBACK;

Compatibility

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

See Also

BEGIN, COMMIT, SAVEPOINT, ROLLBACK TO SAVEPOINT

Parent topic: SQL Command Reference