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PGEE 2018

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Consider relation R(A,B,C,D) with FD A->B C->D is decomposed in to R1(AB) and R2(CD)

then above decomposition is '

A) lossless but not dependency preserving

B) Dependence preserving and lossless

C) Dependency preserving but not lossless

D) Neither Dependency preserving nor lossless

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