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)?
Answer
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)?
Answer