Friday, March 9, 2012

Performance on parent childe 2000 vs. 2005

We like to use parent childe dimension in our OLAP project. In Analysis Server 2000 we know there is no aggregation stored in intermediate levels. Analysis Server could only store aggregation on leaves and the root level. This could slow down the query performance.

How dose Analysis Server 2005 managing aggregation in parent child relation? And what happened with attributes hierarchies on in parent child dimension?

Hope someone can give me a hint.

Marco

Hi,

you could have one parent child and many othere hierarchies in the dimension. Analysis Services is capable to build aggregations on all othere hierarchies and root/leave of parent child, but is still not capable to build aggregations on intermediate levels of the parent child.

I expect the server to be faster especially if you could limit the parent child by restriction with other hierarchies

HANNES

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