UGC NET CSE | June 2019 | Part 2 | Question: 36

Question

In relational database management, which of the following is/are property/properties of candidate key?

P: Uniqueness

Q: Irreducibility

• A. P only
• B. Q only
• C. Both P and Q
• D. Neither P nor Q

Comments

1. P only

P.S : Primary key is irreducible minimal candidate key.

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both P and Q

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I Think Answer Should be a Option C

Answer 1

Answer 3. Both P and Q

A candidate key have both property

1.uniqueness 2. Irreducibility