topic Re: Proper Calculation of Facts/Values from Dimensional Table in DAX Commands and Tips

Proper Calculation of Facts/Values from Dimensional Table

Anonymous — Fri, 29 Sep 2023 11:55:04 GMT

Userstory:
Imagine you have big star shema model and important values/facts in dimensional Tables.
And you don't want to mess up your fact table with multiple low cardinality columns.
Question: How to proper handle these dimTable facts/values?

Simplified Example:

Question: How to get DESIRED YearVolume (because by default it gives 2200 (Totals) in each cell)?

Re: Proper Calculation of Facts/Values from Dimensional Table

Anonymous — Mon, 27 Mar 2023 06:16:26 GMT

Solution ( Download Here )

DESIRED YearVolume = CALCULATE( SUM(dimSalesYearly[YearVolume]), KEEPFILTERS(factSales) )

It could be used as simple pattern for similar cases

Advanced Example Solution:
If you have a bit more complicated model:

Sometimes you need fixed Totals as well:

DESIRED YearVolume (Fixed Totals) = VAR isInSc_Prod = ISINSCOPE(dimProduct[idProduct]) VAR isInSc_Year = ISINSCOPE('Calendar'[Year]) VAR Result = SWITCH( TRUE(), NOT isInSc_Prod && NOT isInSc_Year, CALCULATE([DESIRED YearVolume],REMOVEFILTERS(dimProduct[idProduct]),REMOVEFILTERS('Calendar'[Year])), NOT isInSc_Prod, CALCULATE([DESIRED YearVolume], REMOVEFILTERS(dimProduct[idProduct])), NOT isInSc_Year, CALCULATE([DESIRED YearVolume], REMOVEFILTERS('Calendar'[Year])), [DESIRED YearVolume] ) RETURN Result

P.S. I'd appreciate if you support "PowerQuery: Special symbol for previous step name" request feature by your vote here or/and LinkedIn like/repost here.

Re: Proper Calculation of Facts/Values from Dimensional Table

Anonymous — Mon, 27 Mar 2023 08:26:54 GMT

Hi Anonymous ,

Thank you for your sharing. Please kindly accept your workaround as the solution. Then more people will see your post.

Best Regards,
Rico Zhou

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Re: Proper Calculation of Facts/Values from Dimensional Table

tamerj1 — Wed, 29 Mar 2023 05:19:24 GMT

Hi Anonymous

how about

DESIRED YearVolume 2 = SUMX ( SUMMARIZE ( factSales, dimSalesYearly[idYearProduct], "@Volume", SUM ( dimSalesYearly[YearVolume] ) ), [@Volume] )

Re: Proper Calculation of Facts/Values from Dimensional Table

NotGregDeckler — Tue, 28 Mar 2023 18:01:32 GMT

tamerj1 Anonymous I came up with:

Measure = VAR __idYearProduct = DISTINCT('factSales'[*idYearProduct]) VAR __Result = SUMX(FILTER(ALL('dimSalesYearly'), [idYearProduct] IN __idYearProduct), [YearVolume]) RETURN __Result

Or, you know, make the relationship bi-directional would work as well.

Re: Proper Calculation of Facts/Values from Dimensional Table

Anonymous — Thu, 30 Mar 2023 13:29:13 GMT

NotGregDeckler , tamerj1
Unbelievable!
Absoulutely different thinking style 🙂👍
I updated Source file with your solutions.

Thank you very much!

P.S. Not clear from this discussion branch, but I asked tamerj1 and NotGregDeckler in this post, if it's possible to create this measure without explicite use of CALCULATE function according to DAX is easy, CALCULATE makes DAX hard phylosophy.