115. insert anomaly — example 4

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

What is an insert anomaly?

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Answer & Explanation

4 Answers

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Option A

An INSERT that always succeeds.

Additional Explanation

This option is incorrect for the stated requirement.

Verified Correct Answer

Option B

A schema makes it difficult or impossible to insert a fact without also supplying unrelated data.

Additional Explanation

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

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Option C

A backup restore.

Additional Explanation

This option is incorrect for the stated requirement.

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Option D

A SELECT with ORDER BY.

Additional Explanation

This option is incorrect for the stated requirement.