Computer Science · Database Management System
Consider the following statements regarding keys in RDBMS: (I) A super key is an attribute or combination of attributes that uniquely identifies records in a table. (II) A candidate key is a minimal super key (a subset of a super key that has no proper subset which is also a super key). (III) All super keys are candidate keys but the vice-versa is not true. Which of the statements given above are true?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(I) and (II) are true✓
- 2Only (II) is true
- 3(I) and (III) are true
- 4Only (I) is true
Correct answer
(I) and (II) are true
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