DataBase Management System › Keys in DBMS MCQ › Question #2622
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QThe subset of super key is a candidate key under what condition?

ID: #2622 Keys in DBMS MCQ 17,298 views
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Keys in DBMS MCQTopic
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  • A No proper subset is a super key ✔ ✖
  • B All subsets are super keys ✔ ✖
  • C Subset is a super key ✔ ✖
  • D Each subset is a super key ✔ ✖
Correct Answer: Option A

Explanation

The subset of a set cannot be the same set.Candidate key is a set from a super key which cannot be the whole of the super set
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