I need to get data from previous row based on multiple columns

[Anonymous]

I need to calculate time taken by each user in seconds at each step for a particular Brief Id from below data set 

			(DD-MM-YYYY HH:MM:SS)
Brief Id	Action By	Seq. No.	Created On	Action Date
Brief-000101	Person A	1	19-09-2023 08:00:01	19-09-2023 08:00:59
Brief-000101	Person B	2	19-09-2023 08:00:01	19-09-2023 08:10:15
Brief-000101	Person C	3	19-09-2023 08:00:01	19-09-2023 09:35:45
Brief-000101	Person D	4	19-09-2023 08:00:01	19-09-2023 13:19:01
Brief-000101	Person E	5	19-09-2023 08:00:01	19-09-2023 16:32:26
Brief-000102	Person X	1	18-08-2023 15:30:49	18-08-2023 15:31:08
Brief-000102	Person Y	2	18-08-2023 15:30:49	18-08-2023 17:35:18
Brief-000102	Person Z	3	18-08-2023 15:30:49	18-08-2023 18:55:58
Brief-000102	Person X	4	18-08-2023 15:30:49	19-08-2023 13:01:12
Brief-000102	Person Z	5	18-08-2023 15:30:49	19-08-2023 14:49:22
…	…	…	…	…

Bonus 1: Is there a way to factor out weekends (sat & sun) from the time taken calculation

Bonus 2: Is there a way to factor out weekends & company holidays imported from another excel/table

Bonus 3: Is there a way to factor out non working hours based on office hours imported from another excel/table

[Anonymous · Accepted solution]

Hi @Anonymous ,

Create a calculated column called Previous Action Date that returns the Action Date of the previous row for each Brief Id. You can use the EARLIER function to refer to an earlier row context. For example:

Previous Action Date =
CALCULATE (
    MAX ( 'Table'[Action Date] ),
    FILTER (
        'Table',
        'Table'[Brief Id] = EARLIER ( 'Table'[Brief Id] )
            && 'Table'[Seq. No.]
                = EARLIER ( 'Table'[Seq. No.] ) - 1
    )
)

Create another calculated column called Time Taken that returns the difference in seconds between the Action Date and the Previous Action Date for each row. You can use the DATEDIFF function to calculate the difference. For example:

Time Taken =
DATEDIFF ( 'Table'[Previous Action Date], 'Table'[Action Date], SECOND )

To exclude weekends (Saturday and Sunday) from the time taken calculation, you can use the WEEKDAY function to check the day of the week for each date and subtract the number of weekend days from the difference. For example:

Time Taken (Excluding Weekends) =
VAR Diff =
    DATEDIFF ( 'Table'[Previous Action Date], 'Table'[Action Date], DAY )
VAR StartDay =
    WEEKDAY ( 'Table'[Previous Action Date], 2 )
VAR EndDay =
    WEEKDAY ( 'Table'[Action Date], 2 )
VAR WeekendDays =
    INT ( Diff / 7 ) * 2
        + IF ( MOD ( Diff, 7 ) + StartDay > 6, 2, 0 )
        + IF ( AND ( MOD ( Diff, 7 ) + StartDay > 5, EndDay < StartDay ), -1, 0 )
RETURN
    DATEDIFF ( 'Table'[Previous Action Date], 'Table'[Action Date], SECOND ) - WeekendDays * 24 * 60 * 60

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