Question

Consider a relation R with ve attributes A, B, C, D, and E. You are given...

Consider a relation R with ve attributes A, B, C, D, and E. You are given the following

functional dependencies: A->B, BC->E, and ED->A.

(a) List all keys for R. (10 points)

(b) Is R in BCNF? If it is, explain why. If is not, decompose it into a collection of BCNF

relations. (20 points)

(c) Is R in 3NF? If it is, explain why. If it is not, convert it into a collection of 3NF relations. (20

points)

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