3428. Support: Find unresolved tickets older than seven days. — Performance

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

In a support module, solve this as a production problem using Performance: Find unresolved tickets older than seven days. Provide the SQL, explain the logic, show safe application integration, and mention failure/edge cases.

Looking for the latest Sarkari Result 2026 updates? Check the latest government exam results, merit lists and result updates on Sarkari Resultess.

Answer & Explanation

4 Answers

Verified

Option A

DELETE FROM table_name;

Additional Explanation

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

Verified Correct Answer

Option B

SELECT id,customer_id,created_at FROM tickets WHERE status NOT IN ('resolved','closed') AND created_at

Additional Explanation

Use a status allow/deny list appropriate to the application's lifecycle.

Verified

Option C

SELECT * FROM table_name;

Additional Explanation

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

Verified

Option D

UPDATE table_name SET status='active';

Additional Explanation

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