Forum Discussion

Krishanu's avatar
Krishanu
Helper I
5 years ago

Power Query - Json with varying nested structure

Hi , I have a json with varying and nested structure (below) , which I have to load in indiviual columns in Power Query until the all possible levels. I am struggling with this , please help.  ...
Need Help
Anonymous's avatar
Anonymous
Not applicable
5 years ago

If you want a table with a variable number of columns, maybe you want to rethink your plan as it does not work well in powerbi. You might want to set a limit and then unpivot or something to have a stable number of columns

  • Krishanu's avatar
    Krishanu
    Helper I
    5 years ago

    Hi,
    Not thinking of keeping variable no.of columns. In case, the columns are not applicable they can be null - like the screenshot from Pat.
    Or if all nested values can be captured in seprate rows thats also fine.

    • Anonymous's avatar
      Anonymous
      Not applicable
      5 years ago

      Hi Krishanu 

       

      You can combine tables with different headers, paste below M code in Advanced Editor with a blank query, see if it is what you want

       

      let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("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", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each List.Transform( Json.Document([Column1]), each Table.PromoteHeaders(Table.Transpose( Record.ToTable(_) )))),
    Custom1 = Table.Combine( #"Added Custom"[Custom]{0})
in
    Custom1

       

      • Krishanu's avatar
        Krishanu
        Helper I
        5 years ago

        Hi, Anonymous 
        It brings to the same position what Pat had shown. I have to go under these records too- see below screenshot and reply to Pat's response for details. Thanks for your help.