ROLLBACK SQL - Language Statements ROLLBACK abort the current transaction ROLLBACK ROLLBACK [ WORK | TRANSACTION ] ROLLBACK rolls back the current transaction and causes all the updates made by the transaction to be discarded. 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 to successfully terminate a transaction. To abort all changes: ROLLBACK; The SQL standard only specifies the two forms ROLLBACK and ROLLBACK WORK. Otherwise, this command is fully conforming.