ROLLBACK; -- recover datas back to previous commit in current session
DELETE clause is from DML,
we can use ROLLBACK to recover the data.
• ROLLBACK —> discharges all pending changes to prev commit
• ROLLBACK TO name —> rolls back changes to savepoint
es, since this DELETE clause is from DML,
we can use ROLLBACK to recover the data.
• ROLLBACK TO name —> rolls back changes to savepoint