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Anonymous's avatar
Anonymous
Not applicable
2 years ago

Expand all Columns in a Table at once

I need to expand each one of these columns that each represents a file, but it will take forever to do that. Is there a way to expand all of these columns at once?

 

 

2 Replies

  • dufoq3's avatar
    dufoq3
    Icon for Community Champion rankCommunity Champion

    Hi Anonymous, check this:

     

    let
        TableA = #table({"4/4/24", "4/11/24", "4/18/24"}, {
            {#table({"A", "B"}, {{1,2}, {3,4}}),
            #table({"A", "B", "C"}, {{5,6,7}, {8,9,10}}),
            #table({"D", "E"}, {{15,16}, {17,18}})}
        }),
        Ad_Helper = Table.AddColumn(TableA, "Helper", each 1, Int64.Type),
        UnpivotedOtherColumns = Table.UnpivotOtherColumns(Ad_Helper, {"Helper"}, "Date", "Table"),
        Ad_ColNames = Table.AddColumn(UnpivotedOtherColumns, "ColNames", each Table.ColumnNames([Table]), type list),
        ExpandedTable = Table.ExpandTableColumn(Ad_ColNames, "Table", List.Distinct(List.Combine(Ad_ColNames[ColNames]))),
        RemovedColumns = Table.RemoveColumns(ExpandedTable,{"ColNames", "Helper"}),
        ChangedType = Table.TransformColumnTypes(RemovedColumns,{{"Date", type date}}, "en-US")
    in
        ChangedType
    • Anonymous's avatar
      Anonymous
      Not applicable

      I got the error below. I have 39 columns I need to expand and potentially more.

       

       

      Expression.Error: 39 keys were specified, but 3 values were provided.
      Details:
      [List]