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Question

When a relation has more than one attribute with unique values, each such attribute is called:

A

Multi-valued

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B

Full functional

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C

Half functional

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D

None of the above

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Solution

The correct option is B Full functional
An attribute is fully functional dependent on another attribute, if it is Functionally Dependent on that attribute and not on any of its proper subset. For example, an attribute Q is fully functional dependent on another attribute P, if it is Functionally Dependent on P and not on any of the proper subset of P.

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