Get data from a column by comparing the date in a different table

[Anonymous]

I have Combine2020 = column A: values are "Yes" and "No". Column B:"Created Date", Column C="ID".  
Table B: Has "Published date" and "ID"

ID is 1-many relationship from Table B to Table A.

This is what I have: Yes = CALCULATE(Count('Combine2020'[Is Useful?]),FILTER('Combine2020','Combine2020'[Is Useful?]="Yes"). This will give be count of "Yes" for unique ID.

"Is Useful?" has values of "Yes" an "No".

Now I want to modify the above calculation to get the count when the Created Date is before the Published date.

Thanks

[amitchandak · Accepted solution]

@Anonymous , Try like

CALCULATE(Count('Combine2020'[Is Useful?]),FILTER('Combine2020','Combine2020'[Is Useful?]="Yes" && 'Combine2020'[Created Date]<=related('Table B:'[Published date])))

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[Anonymous]

Hello Amit:

If I want to get the values from [Created date] for just 3 months from [Published date], how would I change DAX?

Thanks

[Anonymous]

Thanks Amit.