2646. Support: Find agents with the highest ticket resolution count. — PHP PDO

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

In a support module, solve this as a production problem using PHP PDO: Find agents with the highest ticket resolution count. Provide the SQL, explain the logic, show safe application integration, and mention failure/edge cases.

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Answer & Explanation

4 Answers

Verified

Option A

SELECT * FROM table_name;

Additional Explanation

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

Verified

Option B

DELETE FROM table_name;

Additional Explanation

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

Verified

Option C

UPDATE table_name SET status='active';

Additional Explanation

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

Verified Correct Answer

Option D

SELECT agent_id,COUNT(*) resolved_count FROM tickets WHERE status='resolved' GROUP BY agent_id ORDER BY resolved_count DESC LIMIT 10;

Additional Explanation

Aggregate resolved tickets per agent and sort descending.