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MCQ (Single Correct Answer)
GATE CSE 2008
Let R (A, B, C, D) be a relational schema with the following functional dependencies:
A → B, B → C, C → D and D → B. The decomposition of R into (A, B), (B, C), (B, D)
(A) gives a lossless join, and is dependency preserving(B) gives a lossless join, but is not dependency preserving(C) does not give a lossless join, but is dependency preserving(D) does not give a lossless join and is not dependency preserving
