[Solved]Known R B C D 1 R Exactly 4 Superkeys 2 B C Non Prime Attributes Candidate Key S Q37265802

It is known that for R(A,B,C,D):

1. R has exactly 4 superkeys.

2. B and C are non-prime attributes.

What are the candidate key(s)?

Expert Answer

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Answer to It is known that for R(A,B,C,D): 1. R has exactly 4 superkeys. 2. B and C are non-prime attributes. What are the candida… . . .