893. Replace view — reporting task 2

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

Implement this reusable reporting layer in MySQL. Use a view when the result definition should be reusable rather than physically stored.

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Answer & Explanation

4 Answers

Verified

Option A

Create a primary key on the SELECT statement itself.

Additional Explanation

This option is incorrect for the stated requirement.

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Option B

Use DELETE to create a view.

Additional Explanation

This option is incorrect for the stated requirement.

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Option C

Create a trigger instead of a view for a read-only report.

Additional Explanation

This option is incorrect for the stated requirement.

Verified Correct Answer

Option D

CREATE OR REPLACE VIEW active_customers AS SELECT id,name,email,city FROM customers WHERE status='active';

Additional Explanation

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