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JW_pfsc's avatar
JW_pfsc
New Member
3 years ago

Combine two tables with both unique and duplicate values

Hi all

 

I'm trying to combine two tables with matching columns into a third table. The column "Item ID" contains ID numbers which may exist only in table 1 (222), only in table 2 (333), or in both table 1 and 2 (111 & 444).

 

The location of each item may be the same in both tables, or it may be different. So I'm trying to create "combined table" in the image below, from table 1 and table 2. Can anyone give me any pointers to acheive this?

 

Thanks in advance.

 

 

Need Help

3 Replies

  • JW_pfsc's avatar
    JW_pfsc
    New Member
    3 years ago

    Hi Idrissshatila 

     

    Thank you for the suggestion. I tried doing this originally, but found it didn't acheive the desired result. If I created a merged query (full outer), the table 2 item ID's were in a different column to the table 1 item ID's. So in my example above, the table looked like this...

     

     

    I'd like to have an "Item ID" slicer, where I can filter by Item ID and see it's respective location in table 1 and table 2. In the example above, "333" isn't in the Item ID slicer for obvious reasons.

     

    Thanks,

    • Anonymous's avatar
      Anonymous
      Not applicable
      3 years ago

      Hi JW_pfsc 

      You can create two blank query in power query, and put the following code to Advanced Editor in power query.

      let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjQ0VNJRclKK1YlWMjY2BrJdwGwTExMg21UpNhYA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Item ID" = _t, #"Location " = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Item ID", Int64.Type}, {"Location ", type text}})
in
    #"Changed Type"
      let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjQ0VNJRclSK1YlWMjIyArKdwWwTExMg21UpNhYA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Item ID" = _t, Location = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Item ID", Int64.Type}, {"Location", type text}}),
    #"Merged Queries" = Table.NestedJoin(#"Changed Type", {"Item ID"}, Query1, {"Item ID"}, "Table (2)", JoinKind.FullOuter),
    #"Expanded Table (2)" = Table.ExpandTableColumn(#"Merged Queries", "Table (2)", {"Item ID", "Location "}, {"Item ID.1", "Location "}),
    #"Added Custom" = Table.AddColumn(#"Expanded Table (2)", "Custom", each if [Item ID]=null then [Item ID.1] else [Item ID]),
    #"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Item ID", "Item ID.1"}),
    #"Reordered Columns" = Table.ReorderColumns(#"Removed Columns",{"Custom", "Location", "Location "}),
    #"Sorted Rows" = Table.Sort(#"Reordered Columns",{{"Custom", Order.Ascending}})
in
    #"Sorted Rows"

      Best Regards!

      Yolo Zhu

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