R(A, B, C, D, E) F = { A → BD, BC → E, B → D, D → A } 求候选码,FC,3NF分解,BCNF分解

2025-01-20 05:53:47
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回答1:

候选码AC
3NF (A,B,D) (C,B,E)
BCNF (B,D) (D,A)