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Question Practice

Which of the following statements is correct about NULL values in a relational database?

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

Which of the following stateme...

Single Answer MCQ
Q-00095146

Which of the following statements is correct about NULL values in a relational database?

1

NULL indicates an infinite value.

2

NULL can be used in multiple instances in an attribute.

3

NULL indicates that a value is unknown or not applicable.

4

Attributes must always have values assigned.

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