Forum Discussion

leroy773's avatar
leroy773
Helper II
10 years ago
Solved

Calculate duration based on dates in different rows.

All,   I am attempting to see if Power BI is a good fit.  And trying to get started on reporting.  I have data from salesforce I reported in the query.  I am looking for an easy way to show the dur...
  • Anonymous's avatar
    Anonymous
    10 years ago

    Hi leroy773,


    Based on your description, you want to compare your current row with previous row, right? If that is the case, firstly, go to query editor of Power BI Desktop and add an index column in your current table.

    Secondly, add a new column and write DAX formula to compare date values of the rows.

    Duration = DATEDIFF(Table5[Column1],IF(Table5[Index]=0,Table5[Column1],LOOKUPVALUE(Table5[Column1],Table5[Index],Table5[Index]-1)),HOUR)/24


    For more details, you can review the example in the attached PBIX file. 



    Thanks,
    Lydia Zhang

ankitpatira's avatar
ankitpatira
Community Champion
10 years ago

leroy773 in power bi desktop easiest way to do is go to query editor, under Add Column tab -> Add Custom Coumn which will give you dialog box to enter power query. you can simply drag and drop your start and end date columns and subtract them. this will create a step in power bi desktop which will be applied each time you refresh the query. If your column type of start and end date is date/time then resulting column will also be date time.

 

 

Sagarkansal's avatar
Sagarkansal
Advocate I
8 years ago

Thanks Ankit...forgot that Power BI is not similar to Excel in Formula ease.