ROLLBACK — abort the current transaction
ROLLBACK [ WORK | TRANSACTION ]
ROLLBACK rolls back the current
transaction and causes all the updates made by the transaction
to be discarded.
Optional key words. They have no effect.
Use COMMIT to successfully terminate a transaction.
ROLLBACK outside of a
transaction block emits a warning and otherwise has no
To abort all changes:
The SQL standard only specifies the two forms
WORK. Otherwise, this command is fully conforming.
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