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ukaya19079's avatar
ukaya19079
Regular Visitor
3 years ago
Solved

Related DAX Function

Hi, I have a question about the RELATED DAX function if someone can help please.   I can create a new column on table X with getting the column from table Y with RELATED function. But it doesn't l...
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  • Anonymous's avatar
    Anonymous
    3 years ago

    Hi ukaya19079 ,

     

    When there is a one-to-many relationship between two tables, we usually use the RRELATED() function to get unique records from one side. You can create calculated columns in the fact table to verify it.

    Column = RELATED(FactTable[Key])

    RELATED

     

    Similarly, if we are at one side (DimTable), there will be multiple records in the fact table table corresponding to one of the rows of DimTable, and we use the RELATEDTABLE () function to get the corresponding record in the fact table (a table).

    RELATEDTABLE

     

    Best Regards,
    Gao
    Community Support Team

     

    If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

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ukaya19079's avatar
ukaya19079
Regular Visitor
3 years ago

Thank you Jihwan_Kim. 

I just watched a tutarial about it. I don't know why but, if there is a 1 to many relation between 2 tables, RELATED DAX will work only on the table where there is many relationships, it won't work on the table where there is only  1 relation. 

 

Thanks a lot for responding.

  • Anonymous's avatar
    Anonymous
    Not applicable
    3 years ago

    Hi ukaya19079 ,

     

    When there is a one-to-many relationship between two tables, we usually use the RRELATED() function to get unique records from one side. You can create calculated columns in the fact table to verify it.

    Column = RELATED(FactTable[Key])

    RELATED

     

    Similarly, if we are at one side (DimTable), there will be multiple records in the fact table table corresponding to one of the rows of DimTable, and we use the RELATEDTABLE () function to get the corresponding record in the fact table (a table).

    RELATEDTABLE

     

    Best Regards,
    Gao
    Community Support Team

     

    If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

    How to get your questions answered quickly --  How to provide sample data in the Power BI Forum