3205. JSON update: Set a nested JSON preference to false. — Testing & QA

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

In a json update module, solve this as a production problem using Testing & QA: Set a nested JSON preference to false. 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 Correct Answer

Option A

UPDATE users SET preferences=JSON_SET(preferences,'$.notifications',false) WHERE id=:user_id;

Additional Explanation

JSON_SET changes the selected path while preserving other JSON properties.

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

SELECT * FROM table_name;

Additional Explanation

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

Verified

Option D

DELETE FROM table_name;

Additional Explanation

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