Computers and Technology, 10.12.2019 23:31 ygneely
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).
1. which of the following dependencies can you infer does not hold over scherna s?
(a) a > 13, (b) be > a, (c) 13 > c 2.
can you identify all y dependencies that hold over s?
Answers: 2
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Suppose that we have the following three tuples in a legal instance of a relation schema s with thre...
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