ROLLBACK
ROLLBACK
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 to successfully terminate a transaction.
Issuing
ROLLBACK
outside of a transaction
block emits a warning and otherwise has no effect.
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.