Suppose that we have the following three tuples in a legal instance of a relation
schema s wi...
Computers and Technology, 12.12.2019 03:31 dnjames01
Suppose that we have the following three tuples in a legal instance of a relation
schema s with three attributes abc (listed in order): (1,2,3), (4,2,3), and (5,3,3).
which of the following dependencies can you infer does not hold over schema s?
(a) a -> b, (b) bc -> a, (c) b -> c
could someone explain how to find the answer? the answer is bc -> a.
Answers: 2
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