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I mastered Excel's GROUPBY & PIVOTBY functions!

Learn how to use Excel's new GROUPBY and PIVOTBY functions through five real-world examples, ranging from easy to hard. This ...
IEEE

Efficient Computation of Iceberg Cubes by Bounding Aggregate Functions

Abstract: The iceberg cubing problem is to compute the multidimensional group-by partitions that satisfy given aggregation constraints. Pruning unproductive computation for iceberg cubing when ...