Computers and Technology, 07.04.2020 23:14, crosales102
Suppose we have a relation schema R(A, B, C) with FD A rightarrow B. Suppose also that we decide to decompose this schema into S(A, B) and T(B, C). Give an example of an instance of relation R whose projection onto S and T and subsequent rejoining as in Section 3.4.1 does not yield the same relation instance. That is, pi_A, B(R) pi_B, C (R) notequalto R.
Answers: 2
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In a compound condition, both conditions on either side of the logical operator and must be true for the overall condition to be true. a: true b: false
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Corey set up his presentation for delivery to his team. the information he had to convey was critical to their job performance. he knew he would need a lot of time to explain each point
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Computers and Technology, 23.06.2019 07:30, barkonatree
What is the penalty for violating section 1201 of title 17 chapter 21 of the us code
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Suppose we have a relation schema R(A, B, C) with FD A rightarrow B. Suppose also that we decide to...
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