242. Insert employee with NULL manager — implementation 1

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

Write the MySQL 8.0 query to insert employee with null manager. Assume the relevant table/columns exist.

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Answer & Explanation

4 Answers

Verified Correct Answer

Option A

INSERT INTO employees (name, dept_id, manager_id, salary, hire_date, status) VALUES ('Ravi', 2, NULL, 65000, '2026-09-01', 'active');

Additional Explanation

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

Verified

Option B

Use a CROSS JOIN without a filter.

Additional Explanation

This option is incorrect for the stated requirement.

Verified

Option C

Use TRUNCATE for only the matching rows.

Additional Explanation

This option is incorrect for the stated requirement.

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Option D

Use SELECT instead of the required operation.

Additional Explanation

This option is incorrect for the stated requirement.