316. Set missing status — implementation 4

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

Write the MySQL 8.0 query to set missing status. Assume the relevant table/columns exist.

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

Use SELECT instead of the required operation.

Additional Explanation

This option is incorrect for the stated requirement.

Verified Correct Answer

Option B

UPDATE customers SET status = 'active' WHERE status IS NULL;

Additional Explanation

Correct implementation. Prefer parameterized queries in application code, validate affected rows for UPDATE/DELETE, and use transactions for related writes.

Verified

Option C

Use TRUNCATE for only the matching rows.

Additional Explanation

This option is incorrect for the stated requirement.

Verified

Option D

Use a CROSS JOIN without a filter.

Additional Explanation

This option is incorrect for the stated requirement.