Made Easy Test Series
Consider a relation R(A,B,C,D,E) and functional dependencies: F= (AC->B, C->D, A->E, C->B) Relation R is decomposed into R1(A,B,C) and R2(C,D), then which of the following is correct about the ... ? (a) Lossless and dependency preserving (b) Lossy and dependency preserving © Lossless and not dependency preserving (d) Not Lossless and not dependency preserving
Consider a relation R(A,B,C,D,E) and functional dependencies: F= (AC->B, C->D, A->E, C->B) Relation R is decomposed into R1(A,B,C) and R2(C,D), then which of the following is correct about the decomposition? (a) Lossless and dependency preserving (b) Lossy and dependency preserving © Lossless and not dependency preserving (d) Not Lossless and not dependency preserving
asked
Dec 31, 2018
in Databases
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