Which of the following commands are related to transaction processing?

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Beltron Programmer 1 Oct 2023 Official Paper

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Answer 1

The correct answer is ROLLBACK and COMMIT.

Key Points

The ROLLBACK and COMMIT commands are essential for transaction processing in database systems.
A transaction is a sequence of operations performed as a single logical unit of work.
The purpose of transactions is to ensure the consistency and integrity of the database.
COMMIT: This command is used to save all the changes made by the transaction permanently in the database.
ROLLBACK: This command is used to undo the changes made by the transaction if any error occurs or if the user decides not to save the changes.
Transaction processing is crucial for maintaining ACID properties (Atomicity, Consistency, Isolation, Durability).

Additional Information

UPDATE and TRUNCATE commands are related to data modification but are not part of transaction control.
AUTHENTICATE and AUTHORIZE are used for user and permission management, not transactions.
GRANT and REVOKE are used for managing database access control.
Transaction control commands like ROLLBACK and COMMIT help in ensuring data reliability and consistency in multi-step operations.