3. schema

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

What is a database schema?

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Answer & Explanation

4 Answers

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Option A

It is only the database password.

Additional Explanation

This option is incorrect for the stated requirement.

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Option B

It is only a backup file.

Additional Explanation

This option is incorrect for the stated requirement.

Verified Correct Answer

Option C

A schema is the logical definition of database objects such as tables, columns, keys, constraints, indexes and relationships.

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 D

It is the number of rows in every table.

Additional Explanation

This option is incorrect for the stated requirement.