Stops 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 Commands
