3362. Audit: Get the latest audit event for each record. — Security

DBMS Published 30 Sept 2026 Updated 30 Sept 2026 0 Views Verified

In a audit module, solve this as a production problem using Security: Get the latest audit event for each record. Provide the SQL, explain the logic, show safe application integration, and mention failure/edge cases.

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Answer & Explanation

4 Answers

Verified Correct Answer

Option A

SELECT * FROM (SELECT a.*,ROW_NUMBER() OVER(PARTITION BY record_id ORDER BY created_at DESC,id DESC) rn FROM audit_logs a) x WHERE rn=1;

Additional Explanation

Window ranking gives one latest audit row per record.

Verified

Option B

UPDATE table_name SET status='active';

Additional Explanation

Incorrect: it does not satisfy the stated business rule and can return/change unintended data.

Verified

Option C

DELETE FROM table_name;

Additional Explanation

Incorrect: it does not satisfy the stated business rule and can return/change unintended data.

Verified

Option D

SELECT * FROM table_name;

Additional Explanation

Incorrect: it does not satisfy the stated business rule and can return/change unintended data.