Count the number of days in a certain period

[frankhofmans]

hi PowerBI experts,

i have a data file with the executed tasks of our employees and the date of these tasks. I want to calculate the number of unique days in a certain period in which tasks are executed.

I have the following data table:

Task ID	Empl. ID	Date
1	10	04-01-2021
2	10	04-01-2021
1	10	13-01-2021
3	10	15-01-2021
1	10	18-01-2021
5	20	11-01-2021
2	20	18-01-2021
7	20	18-01-2021
1	10	01-02-2021
5	10	08-02-2021
9	10	08-02-2021
9	20	08-02-2021
1	20	11-02-2021
1	20	12-02-2021
2	20	12-02-2021

I want the following outcome:

Company level:

Month	Unique days tasks executed in selected period
Jan	5
Feb	4

Employee level:

Employee ID (jan and feb)	Unique days task executed in selected period (jan and feb)
10	6
20	5

So if a employee performed multiple tasks on 1 day, it has to be calculated as 1 unique day (fe empl. ID 10 on 04-01-2021), and if 2 employees performed tasks on the same day, on general level it has to be calculated as 1 unique day, but on employee level it has to be calculated as 2 (fe 08-02-2021, where empl. ID 10 and 20 both performed tasks).

Many thanks for your help!

Regards,

Frank

[frankhofmans]

Hi jdbuchanan71,

This works, but is there a way to count only the working days? I added a column (if date = weekday, 1, blank()) and did the distinctcount (on the new column), but i still get weekend results (strange, cause in the new colums, there aren't any weekend dates).

Thanks!

[v-easonf-msft · Accepted solution]

Hi, @frankhofmans 

To  count only the working days, please create a calculated column as below

Column = IF(WEEKDAY('Data Table'[Date],2)IN{1,2,3,4,5}, 1, blank())

 And then add a  filter condition to your original measure as follows:

Unique days tasks executed in selected period =
CALCULATE (
    DISTINCTCOUNT ( 'Data Table'[Date] ),
    FILTER ( 'Data Table', 'Data Table'[Column] = 1 )
)

Best Regards,
Community Support Team _ Eason
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[jdbuchanan71]

@frankhofmans 

Give this a try.

Unique days tasks executed in selected period = DISTINCTCOUNT ( 'data table'[Date] )