Forum Discussion
Date Difference Between two columns and rows
Hi,
I'm trying to create a formula which will display the difference between The End Date and the Start Date. This is showing how long it took to start a process after finishing one. In the case for ID 1, they finished the process and then started another one, it took 23 days to start the next process
| ID | Start Date | End Date | Expected Outcome |
| 1 | 05/05/2021 | 23/05/2021 | 0 |
| 1 | 15/06/2021 | 23 | |
| 2 | 25/03/2021 | 0 | |
| 3 | 02/07/2021 | 06/07/2021 | 0 |
| 3 | 17/07/2021 | 20/07/2021 | 11 |
| 3 | 29/07/2021 | 9 | |
| 4 | 09/09/2021 | 0 | |
| 5 | 25/09/2021 | 27/09/2021 | 0 |
| 5 | 15/10/2021 | 20/10/2021 | 18 |
The Expected Outcome is what I manually did, I want to create that column within Power BI
I posted the table because I'm to upload to OneDrive etc.
Thanks,
Mike
michael_knight , Try a new column like
Column = var _max1 = maxx(FILTER('Table',[ID] =EARLIER([ID]) && [Start Date] <EARLIER('Table'[Start Date])),[Start Date]) var _max = maxx(FILTER('Table',[ID] =EARLIER([ID]) && [Start Date] =_max1),[End Date] ) return if(ISBLANK(_max), BLANK(), DATEDIFF(_max,[Start Date],DAY))
6 Replies
michael_knight , a new column
new column =
var _max = maxx(filter(Table, [ID] =earlier([ID]) && [Start Date] < earlier([Start Date]) ) , [End Date])
return
if( Isblank(_max), blank(), datediff(_max, [Start Date], day))
Hi amitchandak
Thank you for the reply. That's brilliant but one thing which I forgot to mention, if there is two processes on going, it must displace the earlier version. For example, for ID #3
ID Start Date End Date Expected Outcome 1 05/05/2021 23/05/2021 0 1 15/06/2021 23 2 25/03/2021 0 3 02/07/2021 06/07/2021 0 3 17/07/2021 20/07/2021 11 3 29/07/2021 9 3 05/08/2021 4 09/09/2021 0 5 25/09/2021 27/09/2021 0 5 15/10/2021 20/10/2021 18 There are two ongoing processes, it should only display the date difference for earliest version with the latest version being left blank
michael_knight , Try a new column like
Column = var _max1 = maxx(FILTER('Table',[ID] =EARLIER([ID]) && [Start Date] <EARLIER('Table'[Start Date])),[Start Date]) var _max = maxx(FILTER('Table',[ID] =EARLIER([ID]) && [Start Date] =_max1),[End Date] ) return if(ISBLANK(_max), BLANK(), DATEDIFF(_max,[Start Date],DAY))
Hi,
Does anyone know how I can fix the issue above?
Thanks
michael_knight , Try a new column like
Column = var _max1 = maxx(FILTER('Table',[ID] =EARLIER([ID]) && [Start Date] <EARLIER('Table'[Start Date])),[Start Date]) var _max = maxx(FILTER('Table',[ID] =EARLIER([ID]) && [Start Date] =_max1),[End Date] ) return if(ISBLANK(_max), BLANK(), DATEDIFF(_max,[Start Date],DAY))
