topic DAX to count when no value is related in DAX Commands and Tips

DAX to count when no value is related

M_Donovan — Thu, 11 May 2023 10:46:53 GMT

Hi all

I am struggling to get my head around something that i am sure is simple in Excel power pivot data model.

Table A has X_Id

Table B has X_Id and Y_id

not all items from A are in B but all items in B (X_id) are in A (1 to many). This has been set up as a relationship

I want to get a measure that will give me counts for all the X_IDs in Table A that are not in Table B i.e dont have a Y_id.

hopes that makes sense and thanks in advance

Mike

johnt75 — Thu, 11 May 2023 13:34:10 GMT

Try

Missing from B = COUNTROWS ( EXCEPT ( VALUES ( 'TableA'[X id] ), VALUES ( 'TableB'[X id] ) ) )

M_Donovan — Thu, 11 May 2023 13:41:51 GMT

Johnt,

Seems do do exactly what i wanted to.

Thanks

Mike