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tsuggs1's avatar
tsuggs1
Helper I
6 years ago
Solved

Using DateDiff to find days between two dates in the same column using another column as a filter.

Hi all,

 

I am having issues with finding the days between two dates that are in the same column.

 

Basically the table has a column called 'actualTime' that has a date and another column called code that has an event code (Delivered, CustomsCleared, Invoiced, etc.). The codes are all linked to a Plan_OID that is identical for several of the codes (i.e. Plan_OID 11111 may have a row that has the code Delivered and then another row with the same Plan_OID for a different code). I want to find the difference between two different code's 'actualTime'. 

 

I can generate a conditional column that essentially filters out the 'actualTime' into seperate columns for the specific event codes I am trying to use, but because they are in different rows (even though they have the same plan_oid) it is not finding the dates between. I am not super advanced with DAX, but I am wondering if there is another way to use DateDiff and filter the dates in the same column to find what I am looking for? 

 

Any help is greatly appreciated! Here is a screenshot to give an idea for the table I am using.

 

Need Help
  • tsuggs1's avatar
    tsuggs1
    6 years ago

    Hi,

     

    Thanks for the response.

     

    I essentially found a solution using the same concept however I did it in a much simpler way using the GUI built into Power BI. I duplicated the table and filtered the original by the code I wanted. Then I filtered the duplicated table to the secondary code I needed. After that I created a relationship between the two tables and was able to pull the dates into my DATEDIFF formula to produce the number of days between. Everything seems to be working great!

     

    Thanks again.

11 Replies

    • tsuggs1's avatar
      tsuggs1
      Helper I
      6 years ago

      Hi Greg,

       

      I read over your article however I don't think what I am trying to accomplish is quite the same or complex. Your formula for Repair Hours = DATEDIFF(Repairs[RepairStarted], Repairs[RepairCompleted],SECOND)/3600 is closer to what I am looking for, but these dates are in separate columns whereas in my table the issue is the two dates are not separated into separate columns, and I don't know how to generate a calculated column that would take the 'actualTime' for a specific code and generate this date for all of the same 'Plan_OID' entries in the table if that makes sense.

       

      Maybe one of the other formulas could be broken down to do that, am I missing something?

       

       

      • v-lid-msft's avatar
        v-lid-msft
        Community Support
        6 years ago

        Hi tsuggs1 ,

         

        We can create two spreate table as the slicers and create a measure to meet your requirement:

         

        Code1 = DISTINCT('Table'[code])

         

        Code2 = DISTINCT('Table'[code])

         

        Between Days =
ABS (
    DATEDIFF (
        CALCULATE (
            MAX ( 'Table'[actualTime] ),
            'Table'[code] IN FILTERS ( Code1[code] )
        ),
        CALCULATE (
            MAX ( 'Table'[actualTime] ),
            'Table'[code] IN FILTERS ( Code2[code] )
        ),
        SECOND
    ) / 3600 / 24
)

         

         


        If it doesn't meet your requirement, Please show the exact expected result based on the Tables that you have shared.


        Best regards,