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Bimster's avatar
Bimster
Frequent Visitor
8 years ago
Solved

Date Difference with blank values

 

Hi,

 

I'm trying to calculate the number of days between two dates and for one of these columns, there may be blanks which I want to ignore (rather than give a large -ve value).

 

What DAX do I need to take this into account?  I want the table to still show the entries with the blank fields, just not to add a date in the date difference calculated column (Days to close column in picture below) - thanks

 

 

 

Need Help
  • Bimster's avatar
    Bimster
    8 years ago

    Hi ManNVSM,

     

    Thanks for your help. You gave me the idea of using dummy data so I did this and came up with this formula:

     

    Days to close = if('Breach Register'[Breach closed date]=BLANK(),'Breach Register'[Breach closed date],1.0*'Breach Register'[Breach closed date]-'Breach Register'[Date that breach discovered])

     

    This seems to work ok.

     

    Thanks for your help again.

     

     

11 Replies

  • jthomson's avatar
    jthomson
    Solution Sage
    8 years ago

    Could do something like:

     

    Days To Close = if(isblank([breach closed date]),blank(),[current measure you're using that's giving -43k something])

    • Bimster's avatar
      Bimster
      Frequent Visitor
      8 years ago

      The Days to close column is the one I have added as a calculated column to try and calculate the 'days to close' each breach. This used the following:

       

      Days to close = 1.0*('Breach Register'[Date that breach discovered]-'Breach Register'[Breach closed date])

       

      So I don't think your suggestion will work.

       

      I did try datediff but it errored stating one date can;t be before another. This occurred whether it was x-y or y-x.

       

      I am trying to add a column in the visual to show that where a breach has been closed (breach closed date), the time it took to close. If if hasn't been closed i.e. Breach closed date is blank, then the entry in the new column will also be blank.

       

      Thanks.

  • Anonymous's avatar
    Anonymous
    Not applicable
    8 years ago

    Dear Bimster,

     

    You need to combine your DateDiff DAX with IF.

    Ex:    New Day to close =   CALCULATE( IF ( CLoseDate <> blank(),   [your DateDif Formular] , ""))

     

    Regards,

    ManNVSM.

     

    • Bimster's avatar
      Bimster
      Frequent Visitor
      8 years ago

       

      Hi ManNVSM,

       

      I just tried this and am getting the above error:. Any idea on how to resolve this. The underlying data is being pulled through from a SharePoint list.

       

      • Anonymous's avatar
        Anonymous
        Not applicable
        8 years ago

        Dear Bimster

         

        Try this again with ALLEXCEPT.

        Ex: New day to close = CALCULATE(IF('Breach Register'[Breach closed date] <> BLANK(),DATEDIFF('Breach Register'[Date that breach discovered],   'Breach Register'[Breach closed date], day)  
        , ALLEXCEPT ('Breach Register'[Title]))

         

        Regards,

        ManNVSM.