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Every constraint on the table is a logical consequence of the table’s(a) Fourth normal form(b) Fifth normal form(c) Domain/key normal form(d) None of the MentionedThis question was addressed to me in an online quiz.The origin of the question is Normalization in chapter Planning Oracle Applications of Oracle

Answer»

Correct CHOICE is (c) Domain/key normal form

The EXPLANATION is: A relation is in domain-key normal form (DK/NF) if every CONSTRAINT on the relation is a LOGICAL CONSEQUENCE of the definition of keys and domains.



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