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+#REDIRECT [[Online analytical processing#Hybrid OLAP (HOLAP)]]
-HOLAP ('''H'''ybrid '''O'''n'''l'''ine '''A'''nalytical '''P'''rocess) is a combination of [[ROLAP]] and [[MOLAP]] which are other possible implementation of [[OLAP]]. HOLAP allows to store part of the data in the [[MOLAP]] store and another part of the data in [[ROLAP]] store. The degree of control that cube designer has over this partitioning varies from product to product.
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-== Vertical partitioning ==
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-In this mode HOLAP stores ''aggregations'' in [[MOLAP]] for fast query performance, and detailed data in [[ROLAP]] to optimize time of cube ''processing''.
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-== Horizontal partitioning ==
-In this mode HOLAP stores some slice of data, usually the more recent one (i.e. sliced by Time dimension) in [[MOLAP]] for fast query performance, and older data in [[ROLAP]].
-== Products ==
-Examples of commercial products which support HOLAP storage mode are [[Microsoft Analysis Services]] and [[MicroStrategy]].
-== External links ==
-Owen Kaser and Daniel Lemire, [http://www.daniel-lemire.com/fr/abstracts/DOLAP2003.html Attribute Value Reordering for Efficient Hybrid OLAP], In DOLAP'03, New Orleans, Louisiana, November 7, 2003.
-[[Category:Data management]]
-[[Category:Information technology management]]