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Anonymous's avatar
Anonymous
Not applicable
4 years ago

Datediff function seconds and minutes

Hi, 

 

When I calculate a datediff in hours I haven't any problem:

*Countdown (hours) = IF(ISBLANK(RELATED(mysql_mail_log[created])),DATEDIFF(mysql_reports[*NU],mysql_reports[first_report_expected],HOUR))

 

When I try to calculate the datediff in minutes or seconds, I receive the mesage 'Can't display the visual -> OLE DB or EDBC error: [Expression.Error] We couldn't fold the expression to the data source. 
 
*Countdown (minutes) = IF(ISBLANK(RELATED(mysql_mail_log[created])),DATEDIFF(mysql_reports[*NU],mysql_reports[first_report_expected],MINUTE))
 

 

 Anyone knows what is wrong?
 
I'm using SQL direct query data. 
 

 

6 Replies

  • tamerj1's avatar
    tamerj1
    Icon for Community Champion rankCommunity Champion
    4 years ago

    Anonymous 

    Strange that the HOUR works! Creating time related calculated columns is not allowed in direct query. You have to create measures only

    • Anonymous's avatar
      Anonymous
      Not applicable
      4 years ago

      how I calculate 'hh:mm' or decimal hours with only measurement and without column? I want a value for every row without a calculation like sum, average, ...

      • tamerj1's avatar
        tamerj1
        Icon for Community Champion rankCommunity Champion
        4 years ago

        Hi Anonymous 
        This might require further formatting

        Countdown (minutes) =
VAR TimeDifference =
    SUMX (
        mysql_reports,
        IF (
            ISBLANK ( RELATED ( mysql_mail_log[created] ) ),
            DATEDIFF ( mysql_reports[*NU], mysql_reports[first_report_expected], MINUTE )
        )
    )
RETURN
    QUOTIENT ( TimeDifference, 60 ) & ":"
        & MOD ( TimeDifference, 60 )

        Would be great if you can provide sample file