SQL Commands / Transactions
ROLLBACK
Read the PG 18 manualabort the current transaction
Reading PG 18current·documented in 30 of 30 versions, 6.4 to 20
Syntax
ROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]
Syntax diagrams
Read left to right. Branches are choices, bypasses are optional, loops repeat. Select an underlined parameter to open its rule.
Description
ROLLBACK rolls back the current transaction and causes all the updates made by the transaction to be discarded.
Parameters
WORKTRANSACTIONOptional key words. They have no effect.
AND CHAINIf
AND CHAINis specified, a new (not aborted) transaction is immediately started with the same transaction characteristics (see SET TRANSACTION) 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, COMMIT, ROLLBACK TO SAVEPOINTVersion history 9
Related entries
Definition snapshot: b7bd9cda · English manual source