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Charu's avatar
Charu
Icon for Post Patron rankPost Patron
7 years ago
Solved

Difference between two columns and finding the Average it

Dear All,   Please help me to write the formula to find the difference between two date columns and then take the average of that.   Below is the sample   LAST_UPDATED_DATE CREATION_DATE D...
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  • Charu's avatar
    Charu
    7 years ago

    Hi Greg_Deckler

     

    Calculated Column for DATEDIFF is throwing an error saying "Function DATEDIFF is not allowed as part of calculated Column DAX expressions on DirectQuery models.

     

    So I tried the DATEDIFF with Measure and it's accepting only with aggregate function like MIN,MAX etc,like below

    1.DAY DIFF = DATEDIFF(MIN('Table1'[LAST_UPDATED_DATE]),MIN('Table1'[CREATION_DATE]),DAY)
     
    2.AVG OF DAY = AVERAGEX('Table1','Table1'[DAY DIFF])
     
    It's working fine.
     
    Thank you so much for your timely support.
Greg_Deckler's avatar
Greg_Deckler
Icon for Community Champion rankCommunity Champion
7 years ago

Well, you should be able to create a column:

 

DAY DIFF = DATEDIFF([LAST_UPDATED_DATE],[CREATION_DATE],DAY)

 

And then a measure:

 

Average of DAY DIFF = AVERAGEX('Table',[DAY DIFF])

Charu's avatar
Charu
Icon for Post Patron rankPost Patron
7 years ago

Hi Greg_Deckler

 

Calculated Column for DATEDIFF is throwing an error saying "Function DATEDIFF is not allowed as part of calculated Column DAX expressions on DirectQuery models.

 

So I tried the DATEDIFF with Measure and it's accepting only with aggregate function like MIN,MAX etc,like below

1.DAY DIFF = DATEDIFF(MIN('Table1'[LAST_UPDATED_DATE]),MIN('Table1'[CREATION_DATE]),DAY)
 
2.AVG OF DAY = AVERAGEX('Table1','Table1'[DAY DIFF])
 
It's working fine.
 
Thank you so much for your timely support.
  • Greg_Deckler's avatar
    Greg_Deckler
    Icon for Community Champion rankCommunity Champion
    7 years ago

    Glad you got it sorted out. Yeah, DirectQuery causes some issues with certain DAX functions.