ABORT SQL - Language Statements ABORT abort the current transaction ABORT [ WORK | TRANSACTION ] ABORT rolls back the current transaction and causes all the updates made by the transaction to be discarded. This command is identical in behavior to the standard SQL command ROLLBACK, and is present only for historical reasons. WORK TRANSACTION Optional key words. They have no effect. ROLLBACK Message returned if successful. WARNING: ROLLBACK: no transaction in progress If there is not any transaction currently in progress. Use COMMIT to successfully terminate a transaction. To abort all changes: ABORT; This command is a PostgreSQL extension present for historical reasons. ROLLBACK is the equivalent standard SQL command.