2883. Financial reconciliation: Find refunds greater than the original successful payment. — C# ASP.NET + ADO.NET

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

In a financial reconciliation module, solve this as a production problem using C# ASP.NET + ADO.NET: Find refunds greater than the original successful payment. 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

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 B

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 C

SELECT p.order_id,SUM(CASE WHEN p.status='success' THEN p.amount ELSE 0 END) paid,SUM(CASE WHEN p.status='refund' THEN p.amount ELSE 0 END) refunded FROM payments p GROUP BY p.order_id HAVING refunded>paid;

Additional Explanation

The business rule is checked at the order level; investigate anomalies before correcting financial records.

Verified

Option D

SELECT * FROM table_name;

Additional Explanation

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