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Anonymous's avatar
Anonymous
Not applicable
8 years ago
Solved

Join tables based on multiple columns

Hi,   I have two tables . PowerBI does not let me join these tables as they do have unique values in one of the columns. In SQL I would join these tables based on two columns.    Table 1   acco...
Need Help
  • TomMartens's avatar
    TomMartens
    8 years ago

    Hey,

     

    in the query editor

    1. duplicate the columns that you want to use for the join
    2. mark the duplicated columns you want to use for the join, choose "Merge columns" from the context menu.

    Here is a screenshot:

     

    Repeat this for the 2nd table.

     

    Now you are able to use this column to create a relationship between both tables

     

    Don't forget to "hide" this column from report view.

     

    Hopefully this answers your question

     

    Regards

    Tom

     

Anonymous's avatar
Anonymous
Not applicable
6 years ago

Hi All,

Just wondering if merging/concatenating columns is the only way to join tables based on multiple columns? 

 

As this creates additional columns which is slowing down and making my report heavier.

 

Any update please?

 

Thanks 

Robin

  • danobri's avatar
    danobri
    New Member
    6 years ago

    Anonymous  - did you see the post from MichaelHenry from 3/8/2020?  All you have to is pass arrays of column names for the key parameters like in the example MichaelHenry provided:

     

    JoinedData = Table.Join(AgeData, {"First","Last"}, OccupationData, {"First","Last"})