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The Relational Model and Normalization

Q1: Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that:

A A → B.

B A → C.

C A → (B,C).

D (B,C) → A.

ANS:A - A → B.

Answer is A because in a change of a implies that also b change.



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