Question: Decompose a relation into 3NF if it is not already in 3NF. You MUST explain your answer in detail. A. R(ABCD) FD's: ACD -> B

Decompose a relation into 3NF if it is not already in 3NF. You MUST explain your answer in detail.

A. R(ABCD) FD's: ACD -> B ; AC -> D ; D -> C ; AC -> B

B. R(ABCD) FD's: AB -> C ; ABD -> C ; ABC -> D ; AC -> D

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