Forum Discussion
Calculate Days Between Dates
New to Power BI and need help with calculating the # of days between two date columns. I tried creating a datediff column per other solutions, but that didn't work. Any other suggestions or tweaks to the formula?
Data Info:
Column 1: Created Date
Column 2: Executed Agreement Date
Note -
You must have end_dates that are prior to their corresponding start_dates!
Even if this happens only on one row in your entire dataset - you'll get this error!
Adjust your formula like this...
Days Column = SWITCH ( TRUE (), 'Table'[start_date] < 'Table'[end_date], DATEDIFF ( 'Table'[start_date], 'Table'[end_date], DAY ), 'Table'[start_date] > 'Table'[end_date], DATEDIFF ( 'Table'[end_date], 'Table'[start_date], DAY ) * -1, 0 )You multiply * -1 to get negative numbers where the event ended before it started!
This way you'll be able to quickly identify any issues with your data indicated by the negative numbers.
Hope this helps! :smileyhappy:
3 Replies
You must have end_dates that are prior to their corresponding start_dates!
Even if this happens only on one row in your entire dataset - you'll get this error!
Adjust your formula like this...
Days Column = SWITCH ( TRUE (), 'Table'[start_date] < 'Table'[end_date], DATEDIFF ( 'Table'[start_date], 'Table'[end_date], DAY ), 'Table'[start_date] > 'Table'[end_date], DATEDIFF ( 'Table'[end_date], 'Table'[start_date], DAY ) * -1, 0 )You multiply * -1 to get negative numbers where the event ended before it started!
This way you'll be able to quickly identify any issues with your data indicated by the negative numbers.
Hope this helps! :smileyhappy:
Thank you Sean! This worked and now I can easily idenify those records that have "executed" dates before a "created" dates. Thank you for the quick response.
