Which TCL command undo all the updates performed by the SQL in the transaction ?
A. ROLLBACK
B. COMMIT
C. TRUNCATE
D. DELETE
Answer:A
Which TCL command undo all the updates performed by the SQL in the transaction ?
A. ROLLBACK B. COMMIT C. TRUNCATE D. DELETE
Explanation:Rollback is used for undoing the work done in the current transaction. This command also releases the locks if any hold by the current transaction.