Computer Science · Database Management Systems
Consider the following statements: I. The primary key of a relation cannot contain NULL values. II. A unique key constraint can allow NULL values. Which among the following is true?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both I and II are true✓
- 2Both I and II are false
- 3Only I is true
- 4Only II is true
Correct answer
Both I and II are true
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