Gate CS-2001 Question Paper With Solutions

Q. 48 R(A,B,C,D) is a relation. Which of the following does not have a lossless join, dependency preserving BCNF decomposition?

(A)A->B, B->CD

(B) A->B, B->C, C->D

(C) AB->C, C->AD

(D)A ->BCD

Answer: (C)

Explanation:

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