Forum Discussion

katemke's avatar
katemke
Frequent Visitor
5 years ago
Solved

Create Columns from Duplicate Rows

I have a table that lists a Record ID and a Name of a participant as such:

RECORD IDNAME
1Jim Smith
2Jane Johnson
3Nick Peters
4Kathy James
5Jim Smith
6Joe Doe
7Nick Peters

 

I want to transform this table to create a new table that lists individuals with all associated Record IDs, as such

NameRecord ID 1Record ID 2
Jim Smith15
Jane Johnson2null
Nick Peters37
Kathy James4null
Joe Doe6null

 

Individuals can potentially have more than 2 record IDs but it is unlikely.  Wondering how I can transform the data in Power Query to create this new table

  • Anonymous's avatar
    Anonymous
    5 years ago

    this code should work also in case you have more than two recIDs by name

     

     

     

    let
        Origine = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUfLKzFUIzs0syVCK1YlWMgKJJOalKnjlZ+QV5+eBBY2Bgn6ZydkKAaklqUXFYDEToJh3YklGpYJXYm4qRMwUwzgzkEh+qoJLfiqYb45uUiwA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"RECORD ID" = _t, NAME = _t]),
        #"Modificato tipo" = Table.TransformColumnTypes(Origine,{{"RECORD ID", Int64.Type}, {"NAME", type text}}),
        #"Raggruppate righe" = Table.Group(#"Modificato tipo", {"NAME"}, {{"recID", each _[RECORD ID]}}),
        #"Valori estratti" = Table.TransformColumns(#"Raggruppate righe", {"recID", each Text.Combine(List.Transform(_, Text.From), ","), type text}),
        scd = Table.SplitColumn(#"Valori estratti", "recID", Splitter.SplitTextByDelimiter(",", QuoteStyle.Csv))
    in
        scd

     

     

     

    let
        Origine = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUfLKzFUIzs0syVCK1YlWMgKJJOalKnjlZ+QV5+eBBY2Bgn6ZydkKAaklqUXFYDEToJh3YklGpYJXYm4qRMwUwzgzkEh+qoJLfiqYb47FJAs0NZYYphgbYwgZGqCbFAsA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"RECORD ID" = _t, NAME = _t]),
        #"Raggruppate righe" = Table.Group(Origine, {"NAME"}, {{"recID", each _[RECORD ID]}}),
        #"Valori estratti" = Table.TransformColumns(#"Raggruppate righe", {"recID", each Text.Combine(List.Transform(_, Text.From), ","), type text}),
        sdc = Table.SplitColumn(#"Valori estratti", "recID", Splitter.SplitTextByDelimiter(",", QuoteStyle.Csv))
    in
        sdc
  • Hi katemke 

    Place the following M code in a blank query to see the steps.

    let
        Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUfLKzFUIzs0syVCK1YlWMgKJJOalKnjlZ+QV5+eBBY2Bgn6ZydkKAaklqUXFYDEToJh3YklGpYJXYm4qRMwUwzgzkEh+qoJLfiqYb45uUiwA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"RECORD ID" = _t, NAME = _t]),
        #"Changed Type" = Table.TransformColumnTypes(Source,{{"RECORD ID", Int64.Type}, {"NAME", type text}}),
    
        #"Grouped Rows" = Table.Group(#"Changed Type", {"NAME"}, {{"Count", each Text.Combine(List.Transform([RECORD ID], each Text.From(_)), "|") }}),
        #"Split Column by Delimiter" = Table.SplitColumn(#"Grouped Rows", "Count", Splitter.SplitTextByDelimiter("|", QuoteStyle.Csv), {"Count.1", "Count.2"}),
        #"Changed Type1" = Table.TransformColumnTypes(#"Split Column by Delimiter",{{"Count.1", Int64.Type}, {"Count.2", Int64.Type}}),
        #"Renamed Columns" = Table.RenameColumns(#"Changed Type1",{{"Count.1", "Record ID 1"}, {"Count.2", "Record ID 2"}})
    in
        #"Renamed Columns"

     

    Please mark the question solved when done and consider giving a thumbs up if posts are helpful.

    Contact me privately for support with any larger-scale BI needs, tutoring, etc.

    Cheers 

2 Replies

  • AlB's avatar
    AlB
    Community Champion

    Hi katemke 

    Place the following M code in a blank query to see the steps.

    let
        Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUfLKzFUIzs0syVCK1YlWMgKJJOalKnjlZ+QV5+eBBY2Bgn6ZydkKAaklqUXFYDEToJh3YklGpYJXYm4qRMwUwzgzkEh+qoJLfiqYb45uUiwA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"RECORD ID" = _t, NAME = _t]),
        #"Changed Type" = Table.TransformColumnTypes(Source,{{"RECORD ID", Int64.Type}, {"NAME", type text}}),
    
        #"Grouped Rows" = Table.Group(#"Changed Type", {"NAME"}, {{"Count", each Text.Combine(List.Transform([RECORD ID], each Text.From(_)), "|") }}),
        #"Split Column by Delimiter" = Table.SplitColumn(#"Grouped Rows", "Count", Splitter.SplitTextByDelimiter("|", QuoteStyle.Csv), {"Count.1", "Count.2"}),
        #"Changed Type1" = Table.TransformColumnTypes(#"Split Column by Delimiter",{{"Count.1", Int64.Type}, {"Count.2", Int64.Type}}),
        #"Renamed Columns" = Table.RenameColumns(#"Changed Type1",{{"Count.1", "Record ID 1"}, {"Count.2", "Record ID 2"}})
    in
        #"Renamed Columns"

     

    Please mark the question solved when done and consider giving a thumbs up if posts are helpful.

    Contact me privately for support with any larger-scale BI needs, tutoring, etc.

    Cheers 

  • Anonymous's avatar
    Anonymous
    Not applicable

    this code should work also in case you have more than two recIDs by name

     

     

     

    let
        Origine = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUfLKzFUIzs0syVCK1YlWMgKJJOalKnjlZ+QV5+eBBY2Bgn6ZydkKAaklqUXFYDEToJh3YklGpYJXYm4qRMwUwzgzkEh+qoJLfiqYb45uUiwA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"RECORD ID" = _t, NAME = _t]),
        #"Modificato tipo" = Table.TransformColumnTypes(Origine,{{"RECORD ID", Int64.Type}, {"NAME", type text}}),
        #"Raggruppate righe" = Table.Group(#"Modificato tipo", {"NAME"}, {{"recID", each _[RECORD ID]}}),
        #"Valori estratti" = Table.TransformColumns(#"Raggruppate righe", {"recID", each Text.Combine(List.Transform(_, Text.From), ","), type text}),
        scd = Table.SplitColumn(#"Valori estratti", "recID", Splitter.SplitTextByDelimiter(",", QuoteStyle.Csv))
    in
        scd

     

     

     

    let
        Origine = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUfLKzFUIzs0syVCK1YlWMgKJJOalKnjlZ+QV5+eBBY2Bgn6ZydkKAaklqUXFYDEToJh3YklGpYJXYm4qRMwUwzgzkEh+qoJLfiqYb47FJAs0NZYYphgbYwgZGqCbFAsA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"RECORD ID" = _t, NAME = _t]),
        #"Raggruppate righe" = Table.Group(Origine, {"NAME"}, {{"recID", each _[RECORD ID]}}),
        #"Valori estratti" = Table.TransformColumns(#"Raggruppate righe", {"recID", each Text.Combine(List.Transform(_, Text.From), ","), type text}),
        sdc = Table.SplitColumn(#"Valori estratti", "recID", Splitter.SplitTextByDelimiter(",", QuoteStyle.Csv))
    in
        sdc