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Julia_Mav's avatar
Julia_Mav
Helper II
2 years ago
Solved

Unique value for joining

Hi everyone,

I'm having trouble creating a unique key to join two tables in Power BI. I would appreciate it if someone could advise me on how to create this unique key in Power BI with the 'Material' field, using a rule that involves selecting the 'Part Number' with the most recent 'Date Effective'.

The key value with 'Material/ValidFromYear' (25621352100/2020) is not working; see below. 

 

Thanks in advance.

 

 

  • Anonymous's avatar
    Anonymous
    2 years ago

    Hi Julia_Mav ,

    Do you want to get the part number with the most recent effective data for per material? If yes, you can create a calculated column as below to get it, please find the details in the attachment.

    Column = 
    VAR _maxdate =
        CALCULATE (
            MAX ( 'Table'[Date Effective] ),
            FILTER ( 'Table', 'Table'[Material] = EARLIER ( 'Table'[Material] ) )
        )
    RETURN
        IF ( 'Table'[Date Effective] = _maxdate, 'Table'[Part number] )

    Best Regards

3 Replies

  • Hi Julia, when you say "not working" would you please give more details on exactly what is going wrong?

    • Julia_Mav's avatar
      Julia_Mav
      Helper II

      Hi KEAlexander, it does not provide the Part number with the most recent Effective date. It gives the value that is in B2, while B3 is needed.  Thanks!

      • Anonymous's avatar
        Anonymous
        Not applicable

        Hi Julia_Mav ,

        Do you want to get the part number with the most recent effective data for per material? If yes, you can create a calculated column as below to get it, please find the details in the attachment.

        Column = 
        VAR _maxdate =
            CALCULATE (
                MAX ( 'Table'[Date Effective] ),
                FILTER ( 'Table', 'Table'[Material] = EARLIER ( 'Table'[Material] ) )
            )
        RETURN
            IF ( 'Table'[Date Effective] = _maxdate, 'Table'[Part number] )

        Best Regards