In SQL, ROLLBACK is used to _________.
2017
In SQL, ROLLBACK is used to _________.
Answer: A. Undo all the previous changes — The correct option is A. In SQL, the ROLLBACK command is a Transaction Control Language (TCL) command used to undo uncommitted transactions. It reverts the…
- A.
Undo all the previous changes
- B.
Cut changes
- C.
Paste changes
- D.
End changes
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Show answer & explanation
Correct answer: A
The correct option is A. In SQL, the ROLLBACK command is a Transaction Control Language (TCL) command used to undo uncommitted transactions. It reverts the database to its last committed state or a specific savepoint, completely erasing any pending modifications made during the current session.
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