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TBenders's avatar
TBenders
Icon for Helper II rankHelper II
10 years ago
Solved

Combine rows based on unique id

Hi,

This should be easy to achieve, yet I'm breaking my head over it.

I have a table like this:

idbranche
101business
101hr
102business
103business
103finance
103hr



I want to combine the branches and make id unique, like this:

idbranche
101business, hr
102business
103business, finance, hr



Anyone know how to achieve this, or how to get the combined branches in a new column so I can remove dupplicate rows based on id?

Need Help
  • Greg_Deckler's avatar
    Greg_Deckler
    10 years ago

    Here is the Power Query "M" code version:

     

    let
    Source = Csv.Document(File.Contents("C:\temp\powerbi\group.csv"),[Delimiter=",", Columns=2, Encoding=1252, QuoteStyle=QuoteStyle.None]),
    #"Promoted Headers" = Table.PromoteHeaders(Source),
    #"Changed Type" = Table.TransformColumnTypes(#"Promoted Headers",{{"id", type text}, {"branche", type text}}),
    #"Grouped Rows" = Table.Group(#"Changed Type", {"id"}, {{"Branches", each _, type table}}),
    #"Added Custom" = Table.AddColumn(#"Grouped Rows", "Custom", each Text.Combine([Branches][branche],",")),
    #"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Branches"})
in
    #"Removed Columns"

    Basically, group the rows but keep all as the aggregation, return a table for "branche". Then, do a text combine on that table to get all of the values formatted as a single list of values with a comma separator.

5 Replies

  • Greg_Deckler's avatar
    Greg_Deckler
    Icon for Community Champion rankCommunity Champion
    10 years ago

    Create a DAX measure like this:

     

    Branches = CONCATENATEX(VALUES('group'[branche]),[branche],",")

    Put "id" column and "Branches" measure in a table visualization and set your "id" column to "Do not summarize". 

     

    Or, did you want this in an "M" solution?

    • huguest's avatar
      huguest
      Icon for Advocate II rankAdvocate II
      8 years ago

      Hello,

      I am trying to use this DAX formula but instead of getting the concatenated branche values specific to each ID, I get all branche values for each ID in my table. Any idea what I am doing wrong?

      Thanks.

    • oscarflorez99's avatar
      oscarflorez99
      Frequent Visitor
      5 years ago

      Good afternoon Greg,

       

      thanks for providing the DAX code, I really appreciate it. In addition, I would like to know if there is another formula that could be added in order to list the concatenated values from lowest to highest.

       

      Example (random data): 

       

      ID:             Year:

      1               2010

      1               2008

      1               2009

       

      Based on this data, I would like to have the years listed as follows: 2008,2009,2010. However, without doing any trasnformations to your DAX code, I get the numbers this way: 2010,2008,2009.

       

      Hope I have explained myself clearly enough that you are able to help me with this. 

       

      Thanks,

       

      Oscar F.

  • Greg_Deckler's avatar
    Greg_Deckler
    Icon for Community Champion rankCommunity Champion
    10 years ago

    Here is the Power Query "M" code version:

     

    let
    Source = Csv.Document(File.Contents("C:\temp\powerbi\group.csv"),[Delimiter=",", Columns=2, Encoding=1252, QuoteStyle=QuoteStyle.None]),
    #"Promoted Headers" = Table.PromoteHeaders(Source),
    #"Changed Type" = Table.TransformColumnTypes(#"Promoted Headers",{{"id", type text}, {"branche", type text}}),
    #"Grouped Rows" = Table.Group(#"Changed Type", {"id"}, {{"Branches", each _, type table}}),
    #"Added Custom" = Table.AddColumn(#"Grouped Rows", "Custom", each Text.Combine([Branches][branche],",")),
    #"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Branches"})
in
    #"Removed Columns"

    Basically, group the rows but keep all as the aggregation, return a table for "branche". Then, do a text combine on that table to get all of the values formatted as a single list of values with a comma separator.