Forum Discussion
Difference calculation between two date fields.
I am trying to calculate the datediff between Date1 and Date2 fields. Please note that Date2 column has values that are -1
If the date2 <0 , substitute the date2 value to today() before calculating "Difference" value.
Any help is appreciated.
| Date 1 | Date 2 | Difference |
| 8/1/2019 | 1/1/2022 | |
| 9/1/2019 | 2/1/2022 | |
| 10/1/2019 | 3/1/2022 | |
| 11/1/2019 | 4/1/2022 | |
| 12/1/2019 | 5/1/2022 | |
| 1/1/2020 | 6/1/2022 | |
| 2/1/2020 | 7/1/2022 | |
| 3/1/2020 | 8/1/2022 | |
| 4/1/2020 | -1 | |
| 5/1/2020 | -1 |
Anonymous , I Power Query Replace them with Date.From(DateTime.FixedLocalNow()))
First replace -1 with null
then change datatype to date and then create a new column
if [Date2] = null then Date.From(DateTime.FixedLocalNow())) else [Date2]
Then you can use datediff in DAX
DAX
Datediff([Date1], [Date2], day)
or
Datediff([Date2], [Date1], day)
1 Reply
Anonymous , I Power Query Replace them with Date.From(DateTime.FixedLocalNow()))
First replace -1 with null
then change datatype to date and then create a new column
if [Date2] = null then Date.From(DateTime.FixedLocalNow())) else [Date2]
Then you can use datediff in DAX
DAX
Datediff([Date1], [Date2], day)
or
Datediff([Date2], [Date1], day)