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  1. The ___________ operation, denoted by -, allows us to find tuples that are in one relation but are not in another.
    2. A.
    Union
    B.
    Set-difference
    C.
    Difference
    D.
    Intersection

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    Answer : Option B

    Explanation :

    Set-difference

    The expression r - s produces a relation containing those tuples in r but not in s.

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