Forum Discussion

vanessa's avatar
vanessa
Post Patron
9 years ago

Dynamic Last 7 day

  I am trying to calculate the sales for the last 7 days, but the last 7 days will be dynamic, based on the date selected in a slicer. eg. if the date selected in the slicer is 2017/07/18, then the...
Need Help
Show and Tell
vanessa's avatar
vanessa
Post Patron
9 years ago

Vvelarde

the formula works fine when I hardcode the value as below:

7day_Sales =

 VAR selected_Date = IF(HASONEVALUE('Table'[Date]),2017/07/18),TODAY())

RETURN

CALCULATE(SUM('Table'[Sales]),FILTER('Table','Table'[Date]< [selected_Date] &&'Table'[Date]>= [selected_Date]-7))

 

But when I try using VALUES('Table'[Date]) instead hardcoding the date, the measure returns data for all the dates in the table.

 

Is this because the left and right side of the filter condition are hitting the same table?

Anonymous's avatar
Anonymous
Not applicable
9 years ago

HI vanessa,

 

Power bi not support dynamic calculated columns based on slicer, you can create dynamic measure based on slicer.

In addition, you can use query parameter to create a dynamic calculated column on power query.

Deep Dive into Query Parameters and Power BI Templates

 

Regards,

Xiaoxin Sheng

  • vanessa's avatar
    vanessa
    Post Patron
    9 years ago

    Anonymous I am trying to create a dynamic measure not column.

    • Anonymous's avatar
      Anonymous
      Not applicable
      9 years ago

      Hi vanessa,

       

      You can try to use below formula to calculate the last 7 day sales:

      Last 7 Day Sales = 
var seleted=LASTDATE(ALLSELECTED('Fact table'[Date]))
return
CALCULATE(SUM('Fact table'[Sales]),FILTER(ALL('Fact table'),'Fact table'[Date]>=seleted-7&&'Fact table'[Date]<=seleted))

       

       

      Regards,

      Xiaoxin Sheng

      • Rameshwar's avatar
        Rameshwar
        Frequent Visitor
        9 years ago

        Hi Anonymous

         

        Your formula works correctly in PowerBI Desktop when I have In Memory data. 

         

        However, its not working when I've PowerBI Desktop conected to SSAS Tabular instance (1103 compatibility - SQL2014) with Direct Query connection. It gives me syntax error for VAR function.

         

        Is VAR function not supported in SSAS, specifically to 1103 compatibility level?

         

        Thanks for your help!

         

        Thanks,

        Rameshwar