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IBM Cognos 10 Platform => Cognos 10 BI => Report Studio => Topic started by: cognosbeginner on 31 Jul 2014 08:47:33 AM

Title: Peformance of report using report studio
Post by: cognosbeginner on 31 Jul 2014 08:47:33 AM
Hello All

Does the number of data items in a query affect the performance of a report? I have multiple data items using dimensional functions. The complex data items are created kind of in a step-by-step manner using multiple data items, for ease of understanding. Although i do not have any issues with performance, i just want to know if there is any observation on this.

Thanks!
Title: Re: Peformance of report using report studio
Post by: gosoccer on 31 Jul 2014 01:22:53 PM
Are you dealing with cubes (OLAP)?
Title: Re: Peformance of report using report studio
Post by: cognosbeginner on 31 Jul 2014 04:06:06 PM
Yes, i'm building the report based on multiple cube datasources.
Title: Re: Peformance of report using report studio
Post by: gosoccer on 01 Aug 2014 07:30:55 AM
One of the biggest mistake I made was to perform string operations such as below. It slowed down the Reports big time.
Have the cube generation process to handle as much data conversion, calculations, etc. Pls see my mistake below,
case
when [dsCube].[SSS_TYP_CD - Long Name] = '01' then 'DD2S(ACT)'
when [dsCube].[SSS_TYP_CD - Long Name]= '02' then 'DD2(RES)'
:)