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Discussion :: DBMS MCQs

  1. Select __________ from instructor where dept name= 'Comp. Sci.';
    Which of the following should be used to find the mean of the salary ?
    2. A.
    Mean(salary)
    B.
    Avg(salary)
    C.
    Sum(salary)
    D.
    Count(salary)

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    Workspace

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    Answer : Option B

    Explanation :

    Avg(salary)

    Avg() is used to find the mean of the values.

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