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What is TRUE about the Candidate key?

5. What is TRUE about the Candidate key?

1. Candidate keys are considered for all attributes except the primary key
2. Both the candidate keys and the primary key are equally strong
3. Both A and B
4. None of the above

Answer: C) Both A and B

Explanation:

In case of Candidate Key -

1. Candidate keys are considered for all attributes except the primary key
2. Both the candidate keys and the primary key are equally strong