Determine if he decompostition of r into the relation schema
Problem
Consider the relational schema R(A,B,C,D) an the set F={A->B, B->C, C->D, D->B} of functional dependencies. Determine if he decompostition of R into the relation schemas R1(A,B), R2(B,C), and R3(B,D) is dependency preserving.
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Determine if he decompostition of R into the relation schemas R1(A,B), R2(B,C), and R3(B,D) is dependency preserving.
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