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



Comments

Post a Comment

Popular posts from this blog

SQL server replication error Cannot find the dbo or user defined function........

hi there, i ran problem while deploying sql 2008 transactional replication between 2 servers lets assume server , b. actually created  both distributor , publisher on server , after created subscriber pointed server b, launch replication monitor , found big red cross. when click on tab "distributor subscriber history" error says "cannot find either column "dbo" or user defined-function or aggregate "dbo.ufnleadingzeros", or name ambiguous". can body regarding issue. regards, ishuv hi, you need compare data , others reseved, index size, unused should not compared. differs. here server - data - 87896 kb server b - data - 78152 kb server data size includes publication tables, can't compare directly. need check article article know exact data size. SQL Server  >  ...
Read more

BIT Version

  hi,     knows how find out ther bit version in sql  , windows os (32 or 64)   regards, s.balavenkatesh   microsoft sql server 2005 - 9.00.1399.06 (intel x86) oct 14 2005 00:33:37 copyright (c) 1988-2005 microsoft corporation standard edition on windows nt 5.2 (build 3790: service pack 2)     intel x86)   -- says sql server 32 bit   madhu SQL Server  >  SQL Server Tools
Read more

Admin Permissions

hi need create new 'role' following permissions, 1. access sql server logs. 2. access maintenance plans ( can avoid access) 3. access activity monitor 4. normal access product databases , not system db´s need guidance on how it, can point me in right direction please? thanks 1.grant  execute on xp_readerrorlog [domainname\ad user or group]; 2. http://technet.microsoft.com/en-us/library/ms191002.aspx 3.view server state permission 4. make user member of dbo_owner database role. best regards,uri dimant sql server mvp, http://sqlblog.com/blogs/uri_dimant/ ms sql optimization: ms sql development , optimization ms sql consulting: large scale of database , data cleansing remote dba services: improves ms sql database performance sql server integration services: business intelligence SQL Server  >  ...
Read more