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Functional dependencies are a generalization of

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Functional dependencies are a generalization of

(a) Key dependencies

(b) Relation dependencies

(c) Database dependencies

(d) None of the mentioned

This question was addressed to me during an online exam.

Asked question is from Extended E-R Features in section Database Systems Design and Implementation of Database Management

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Correct answer is (a) Key dependencies

The best explanation: The subclasses are combined to form the superclass.

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