This operator, proposed in Agrawal, Gupta, & Sarawagi (1997), is used to convert dimensions into elements that can then be manipulated using the combining function felem. This its a typical operator useful in OLAP application in order to allow dimensions and measures to be treated uniformly. An example (taken from Agrawal, Gupta, & Sarawagi, 1997) is shown in Figure 19.

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Figure 19

Multidimensional Databases(c) Problems and Solutions
Multidimensional Databases: Problems and Solutions
ISBN: 1591400538
EAN: 2147483647
Year: 2003
Pages: 150

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