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Anonymous's avatar
Anonymous
Not applicable
4 years ago
Solved

LAG / LEAD SQL Alternative in power bi. Partitioning.

Hi All, 

 

I've got a list of CustomerIDs and datetimes and a 'status' of either 1,2,3,4/5. e.g. I would like to get a date range by getting and EndDateTime.

 

This is what i have: 

CustomerID, DateTime, Status

1, 2020-02-01 03:00:00.000, 1 
1, 2020-02-01 04:00:00.000, 2

1, 2020-02-01 06:00:00.000, 3

2, 2020-02-03 07:00:00.000, 2

2, 2020-02-03 09:30:00.000, 3

2, 2020-02-03 10:30:00.000, 2

 

 

This is what i want: 


CustomerID, DateTime, EndDateTime, Status

1, 2020-02-01 03:00:00.000, 1,  2020-02-01 04:00:00.000,
1, 2020-02-01 04:00:00.000, 2,  2020-02-01 06:00:00.000

1, 2020-02-01 06:00:00.000, 3,  NULL

2, 2020-02-03 07:00:00.000, 2, 2020-02-03 09:30:00.000

2, 2020-02-03 09:30:00.000, 3, 2020-02-03 10:30:00.000

2, 2020-02-03 10:30:00.000, 2, NULL



In Sql I would usually use:
LEAD([DateTime]) OVER(PARTITION BY [CustomerID] ORDER BY [DateTime]) 
I am unable to use sql here though and need to achieve in Power BI Desktop

I want to do this in Power BI, preffarably not in power query editor but accept it may be easier in Power Query or not possible in Power BI Desktop. 

Thanks


Need Help
  • Anonymous's avatar
    Anonymous
    4 years ago

    Hi Anonymous ,

     

    Please try:

    EndDateTime = MINX(FILTER('Table',[CustomerID]=EARLIER('Table'[CustomerID]) &&  [DateTime]>EARLIER('Table'[DateTime])),[DateTime])

    If it's not you wanted, please share more detail information to help us clarify your scenario.

     

     

    Best Regards,
    Eyelyn Qin
    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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