Your help will greatly be appreciated in this Database Question A basis for a se

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Your help will greatly be appreciated in this Database Question

A basis for a set of FD's F is any set G of FD's whose closure is the same as the closure of F. That is, exactly the same FD's follow from F as from G. Suppose we have a relation R(A,B,C,D)) with FD's A B, B C, D, and D A. Suppose we project R onto attributes ABC. Describe all the bases (consisting of a minimal set of nontrivial FD's) for the set of FD's that hold in ABC. Identify one of these bases from the list below. A C,B C,C A,C B C A,C B, A B,B A the empty set B A, B C,A C,C A

Explanation / Answer

b

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