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  3. Set and Algebra
  4. Databases - Natural Joins
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Databases - Natural Joins

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9 Discussions

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  • shubham_409
     + 1 comment

    why C is after B not before B in answer. like why not A C B D ?

  • winklerglinesnw1
     + 0 comments

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  • piu198
     + 2 comments

    I can't understand that in how the tuples are represented here in the relation R. How is it possible to have different tuples in one relation? If I take R(B,C,D) that means relation R has three attributes i.e., B,C and D so what does it mean B:C:D 50,1,6 so does it mean that the attribute B has 50 tupples,attribute C has 1 tupple and the attribute D has 6 tupples?

  • vishumnnit
     + 0 comments

    Answer is :
    50
    1
    6

  • krsticsmederevac
     + 0 comments

    A =27

    A,C = 27,1

    B,C,D = 50,1,6

    50 1 6