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Discussion :: DBMS MCQs

  1. The operation of moving from finer-granularity data to a coarser granularity (by means of aggregation) is called a ________.
    2. A.
    Rollup
    B.
    Drill down
    C.
    Dicing
    D.
    Pivoting

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    Answer : Option A

    Explanation :

    Rollup

    The opposite operation”that of moving fromcoarser-granularity data to finer-granularity data”is called a drill down.

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