Consider the following two relations, R(A,B) and S(A,C): The total number of…
Consider the following two relations, R(A,B) and S(A,C):
The total number of tuples obtained by evaluating the following expression σB<C(R ⋈R.A = S.A S) is _________.
Answer: B. 2
- A.
1
- B.
2
- C.
3
- D.
4
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Correct answer: B
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