2651. SaaS: Calculate monthly recurring revenue from active plans. — PHP PDO

DBMS Published Updated 0 Views Verified
In a saas module, solve this as a production problem using PHP PDO: Calculate monthly recurring revenue from active plans. 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.
Sarkari Resultess
Questions & Answers

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.
Sarkari Resultess
Editorial Answer 1
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.
Sarkari Resultess
Editorial Answer 2
Verified Correct Answer

Option C

SELECT SUM(amount) mrr FROM subscriptions WHERE status='active' AND billing_cycle='monthly';
Additional Explanation
MRR definitions vary; include only subscriptions matching the organization's recognized recurring-revenue rules.
Sarkari Resultess
Editorial Answer 3
Verified

Option D

DELETE FROM table_name;
Additional Explanation
Incorrect: it does not satisfy the stated business rule and can return/change unintended data.
Sarkari Resultess
Editorial Answer 4