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Discussion :: GATE CSE

  1. Consider the following relations A, B and C:
       

    How many tuples does the result of the following relational algebra expression contain? Assume that the schema of A∪B is the same as that of A.
    (A∪B) ⋈A.Id > 40 ᴠ C.Id < 15 C
    2. A.
    7
    B.
    4
    C.
    5
    D.
    9

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    Workspace

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    Answer : Option A

    Explanation :

    -NA-

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