Maurice Tutor

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Category > Accounting Posted 11 Aug 2017 My Price 3.00

functional dependency

1.What is a functional dependency? Who specifies the functional dependencies that hold among the attributes of a relation schema?

2.Why can we not infer a functional dependency from a particular relation state?

3.Why are Armstrong’s inference rules—the three inference rules IR1 through IR3—important?

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Maurice Tutor
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Status NEW Posted 11 Aug 2017 12:08 AM My Price 3.00

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