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DC
Question Practice

When utilizing a composite primary key, what must be ensured?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 11
Informatics Practices
Informatics Practices
Database Concepts
Question Bank

When utilizing a composite pri...

Single Answer MCQ
Q-00066971

When utilizing a composite primary key, what must be ensured?

1

Each of its constituent attributes must allow NULL

2

All attributes must uniquely define a tuple together

3

No two attributes can ever be the same

4

The primary key should only derive from the same table

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