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DC
Question Practice

Which of the following statements is true regarding null values in keys?

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

MCQ_SA
CBSE
Class 12
Computer Science
Computer Science
Database Concepts
Question Bank

Which of the following stateme...

Single Answer MCQ
Q-00095145

Which of the following statements is true regarding null values in keys?

1

Primary keys can accept null values

2

Candidate keys must not have null values

3

Foreign keys can have null entries freely

4

Composite keys may include null values

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