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POSPOS's avatar
POSPOS
Post Partisan
2 years ago
Solved

Days between dates of same column using DAX

Hi All, I have a requirement to find the days between dates of the same column.  The first value should be the difference between the date and the date of the next step and the last value should be...
Need Help
  • Anonymous's avatar
    Anonymous
    2 years ago

    Hi POSPOS ,

    Please try:

    Column = 
VAR _cur_protocol = 'export'[Protocol Number]
VAR _cur_index = 'export'[Index]
VAR _next_index = CALCULATE(MIN('export'[Index]),FILTER(ALL('export'),'export'[Protocol Number]=_cur_protocol && 'export'[Index]>_cur_index))
VAR _next_date = CALCULATE(MIN('export'[Status Date]),ALLEXCEPT('export','export'[Index]),'export'[Index]=_next_index)
VAR _result = COALESCE(DATEDIFF('export'[Status Date],_next_date,DAY),0)
RETURN
_result

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Data-estDog's avatar
Data-estDog
Resolver II
2 years ago
DaysTillNextSatus=
VAR CurrentStatusDate = Min('export'[Status Date])
VAR CurrentProtocol = SELECTEDVALUE('export'[Protocol Number])
var NextDate = CALCULATE(
    Min('export'[Status Date]),
    FILTER(
        ALL('export'),
        'export'[Status Date] > CurrentStatusDate && CurrentProtocol = 'export'[Protocol Number]
    )
)
VAR vDifference = DATEDIFF(CurrentStatusDate , NextDate, DAY)

RETURN if(ISBLANK(vDifference), 0, vDifference)
POSPOS's avatar
POSPOS
Post Partisan
2 years ago

Data-estDog  - thank for the response.

When the dates are same, the values are not showing as expected. In this example, "Staff" comes before "Assigning", hence staff should be 9 and Assigning should be 0.

But 9 is repeated for both the statuses.

 

  • Data-estDog's avatar
    Data-estDog
    Resolver II
    2 years ago

    You would need a more granular date/time stamp. Or a sequence number (order the status was changed in) in order to achieve that.

    • Data-estDog's avatar
      Data-estDog
      Resolver II
      2 years ago

      If you want to assume status always happens in alphabetical order: 

      DaysTillNextStatus =
      VAR CurrentStatusDate = Min('export'[Status Date])
      VAR CurrentProtocol = SELECTEDVALUE('export'[Protocol Number])
      VAR CurrentStatus = SELECTEDVALUE('export'[Status])
      var NextDate = CALCULATE(
          Min('export'[Status Date]),
          FILTER(
              ALL('export'),
              ('export'[Status Date] > CurrentStatusDate && CurrentProtocol = 'export'[Protocol Number])
          )
      )
      var NextDate2 = CALCULATE(
          Min('export'[Status Date]),
          FILTER(
              ALL('export'),
              ( 'export'[Status Date] = CurrentStatusDate
                  && CurrentProtocol = 'export'[Protocol Number]
                  && 'export'[Status] > CurrentStatus)
          )
      )
      VAR vDifference = DATEDIFF(CurrentStatusDate , NextDate, DAY)
      VAR vDifference2 = DATEDIFF(CurrentStatusDate , NextDate2, DAY)

      RETURN IF(ISBLANK(COALESCE(vDifference2, vDifference)), 0, COALESCE(vDifference2, vDifference))
    • POSPOS's avatar
      POSPOS
      Post Partisan
      2 years ago

      Data-estDog  - Can we add a index col and then use this code ? as the statuses are not always in alphabetical order and can vary case by case.

      • Data-estDog's avatar
        Data-estDog
        Resolver II
        2 years ago

        Yes. I see that as the same as a sequence number. With the absence of time, its just something that gives indication of order.

         

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