DAX - SUMMARIZE V SUMMARIZECOLUMNS in DAX filter

[OliverO]

Hi

I have got some DAX where I join 2 tables in a union where some manual adjustments get added to data from a different source which makes up the majority of the data.

I need to filter out the main data so that if data (based on two fields) exists in the adjustments, I want to exclude those combinations appearing in the main data.

I have got the DAX working as I want it, but I was interested in finding out if I can replace the SUMMARIZE (below in RED) with SUMMARIZECOLUMNS.

It doesn't seem to work when I use SUMMARIZECOLUMNS, but I don't know why.

Many thanks

Oliver

zz Claims Return 2 =

SUMMARIZECOLUMNS (

    'Claims Solvency 2 Return'[Claim Reference],

    'Claims Solvency 2 Return'[UMR],

    'Claims Solvency 2 Return'[Risk Code],

    FILTER (

        'Claims Solvency 2 Return',

        NOT (

             ( 'Claims Solvency 2 Return'[UMR]  , 'Claims Solvency 2 Return'[Claim Reference] )

                IN SUMMARIZE  (

                    'S2 Manual (Claims)',

                    'S2 Manual (Claims)'[UMR] ,  'S2 Manual (Claims)'[Claim Reference]

                )

        )

    )

)

[v-yangliu-msft · Accepted solution]

Hi @OliverO ,

According to your description, I created this data and copied your operation, and got the following error:

Claims Solvency 2 Return:

S2 Manual (Claims):

Use SUMMARIZE to get results:

This error occurs when using SUMMARIZECOLUMNS:

This is because you cannot apply an external filter context (such as CALCULATE or CALCULATETABLE) to SUMMARIZECOLUMNS, so you cannot use it in metric expressions, making it useless in most measures.

This is the content of the related link, I hope it helps you

https://www.sqlbi.com/articles/introducing-summarizecolumns/

https://social.msdn.microsoft.com/Forums/silverlight/en-US/363ce011-0aa7-4f35-9979-77691b76b1bf/summ...

https://community.powerbi.com/t5/Desktop/SummarizeColumns-and-AddMissingItems-may-not-be-used-in-thi...

Best Regards,

Liu Yang

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

[OliverO]

Thanks Liu Yang!

[MFelix]

Hi @OliverO ,

Check this article by SQLBI with the difference between both functions.

https://www.sqlbi.com/articles/introducing-summarizecolumns/

[OliverO]

Thanks Miguel!