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IBM Cognos 10 Platform => Cognos 10 BI => Report Studio => Topic started by: inu on 27 Oct 2016 05:30:38 AM

Title: Detail filter in DMR report
Post by: inu on 27 Oct 2016 05:30:38 AM
Hi Guys,
Can you please suggest me , can i use detail filter in dmr report, or only slicer can be used.





Regards,
Inam
Title: Re: Detail filter in DMR report
Post by: hespora on 27 Oct 2016 05:35:06 AM
http://www.cognoise.com/index.php/topic,18290.msg53585.html#msg53585
http://cognospaul.com/2012/01/29/why-detail-filters-should-never-be-used-in-olap/
Title: Re: Detail filter in DMR report
Post by: BigChris on 27 Oct 2016 06:00:38 AM
I think there was a collective shudder...the equivalent of a disturbance in The Force...when that question hit the forum. :)
Title: Re: Detail filter in DMR report
Post by: hespora on 27 Oct 2016 06:36:52 AM
Oh, I just pasted the general consensus. ;) I know way too little about dimensional that I could informedly agree or disagree.

My experience with relational tells me that I want to think "this general no-no-dont-you-do-this attitude must be wrong if the report author knows what they're doing", but there may just be something about dimensional that I simply dont realize.
Title: Re: Detail filter in DMR report
Post by: stan.parker on 27 Oct 2016 07:18:53 AM
Quote from: inu on 27 Oct 2016 05:30:38 AM
Hi Guys,
Can you please suggest me , can i use detail filter in dmr report, or only slicer can be used.





Regards,
Inam

You can use a detail filter, however, using the dimensional filter function can filter the results faster.
Title: Re: Detail filter in DMR report
Post by: BigChris on 27 Oct 2016 08:04:03 AM
QuoteI want to think "this general no-no-dont-you-do-this attitude must be wrong if the report author knows what they're doing"

To a greater or lesser extent you may be right, but there are so many pratfalls in using a detail filter that it's just not worth taking the risk. CognosPaul's post explains it far more eloquently than I ever could...it's definitely worth reading if you haven't already.

QuoteYou can use a detail filter, however, using the dimensional filter function can filter the results faster

That's a much too sweeping comment I'm afraid - using a detail filter can very easily bring back unexpected, or just plain wrong, results.
Title: Re: Detail filter in DMR report
Post by: bdbits on 27 Oct 2016 12:28:22 PM
BigChris - "a disturbance in the Force" - lol....  :D

The link to the cognoise topic on why not to do it has over 8000 views. With good reason. Just because you can doesn't mean you should. Read the links if you want to understand.

Don't use a detail filter on dimensional data. Ever.