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Fair-UL's avatar
Fair-UL
Helper II
4 years ago

Calculate Time between two dates on different rows

My issue is a bit tricky. I have this mock dataset with employees, levels, training group, and dates of start of level. not all employees are L2 in all training groups. I want to be able to calculate...
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v-henryk-mstf's avatar
v-henryk-mstf
Community Support
4 years ago

Hi Fair-UL ,

 

According to your description, I did a test reference as follows:

 

col_l2 =
CALCULATE (
    MIN ( 'Table'[L1 start date] ),
    FILTER (
        ALL ( 'Table' ),
        'Table'[training group] = EARLIER ( 'Table'[training group] )
    )
)
Col = 
var a = MONTH('Table'[L2 start date])-MONTH('Table'[col_l2])
var b = YEAR('Table'[L2 start date])-YEAR('Table'[col_l2])
return
IF('Table'[L2 start date]<>0,IF(a>=0, b*12+a,b*12-a))

If the problem is still not resolved, please provide detailed error information and let me know immediately. Looking forward to your reply.


Best Regards,
Henry


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Fair-UL's avatar
Fair-UL
Helper II
4 years ago

Hi v-henryk-mstf 

the issue is in column col_l2, I need to calculate the time between L1 and L2 start dates for any employee who has L2 in a training group. So, for employee1, I need to find the time between  2/1/2020 and 10/1/2021 [20 months] . any other L1 start date can be ignored for any training groups for that employee unless he has another L2 start date for another training group