in Databases
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Somebody please verify the answer

in Databases
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1 Answer

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I think your answer is correct because

functional dependency of r1 U functional dependency of r2 leads to all dependencies of F.

But according to the answer given I think the question setter wants A->D to be explicitly present which I think is wrong because it is transitively defined. There is no need of A->D to be present explicitly in the decomposition.
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