By datakeyword
via it.toolbox.com
Submitted: Nov 28 2012 / 09:32
Cask principle illustrates this idea: no matter how high the cask is, it is the shortest board of the cask, not the longest one, determines how much water the cask can hold. The traditional OLAP comprises 4 pieces of slabs: modeling, query, computation, and presentation, the longest one is the presentation and the shortest is the computation. Unfortunately, computing is just the core to OLAP.
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