question on Cube Processing with aggregation?


i watched little video on aggregations , seemed important add cube, went ahead , added them. this, however, took cube processing 45 minutes 5 hours. 

i ran few queries through mdx , didnt see noticable improvement performance wise, question this: why need these? cube seems run fine without them.

another observation noticed while processing number right of each partition jumps on place. go 1 of 218, 140 of 218, 32 of 218, 4 of 218, 204 of 218, 140 of 218.

without aggregations number climbs linearly.

 

what gives?

craig

aggregations create precreated summary of measures along dimensional hierarchies. speeds queries.... long queries needed aggregations.

the best way design aggregation using usage based optimzation wizard.

the processing time goes because pre-summarizing data , requires time , resources.

http://technet.microsoft.com/en-us/library/ms174758.aspx

 

 



SQL Server  >  SQL Server Analysis Services



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