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IBM Cognos 10 Platform => Cognos 10 BI => Report Studio => Topic started by: sthabinash on 22 Apr 2013 04:38:18 AM

Title: Sub-totals make report slow
Post by: sthabinash on 22 Apr 2013 04:38:18 AM
I have a report with multiple regular dimensions and subtotals (summarizes) at different levels. When I run the report without any sort of subtotals, the report runs in about 20-30 sec. But when I add the subtotals the reports takes about 2min to run :'( .

How can I minimize this additional time taken?
Title: Re: Sub-totals make report slow
Post by: CognosPaul on 22 Apr 2013 06:05:02 AM
DMR, OLAP, or relational? DQM or CQM? How many levels of nesting in your report?
Title: Re: Sub-totals make report slow
Post by: sthabinash on 22 Apr 2013 06:27:22 AM
Its DMR report with DQM. It contains 5 level of nesting and each nesting level being regular dimension
Title: Re: Sub-totals make report slow
Post by: CognosPaul on 22 Apr 2013 11:20:43 AM
Are you subtotaling each level of nesting? What method are you using to subtotal?

Make sure it's: total(currentMeasure within set [Data item]) instead of within detail

If that doesn't work, try nesting a data item into itself instead of the subtotal.