Question: Moving from finer - granularity data to coarser granularity in OLAP operation is called q , a . rollup b . drill down C .

Moving from finer-granularity data to coarser granularity in OLAP operation is called q,
a. rollup
b. drill down
C. pivoting
d. slicing
Moving from finer - granularity data to coarser

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