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How to Pivot/Unpivot columns in Power BI data table?
I have a dataset as below
| Name | ID | Science_Marks | Maths_Marks | Science_Grade | Maths_Grade |
| ABC | 123 | 23 | 34 | C | B |
| DEF | 456 | 44 | 33 | A | B |
I need to convert it to the below format (more charts-friendly)
| Name | ID | Subject | Marks | Grade |
| ABC | 123 | Science | 23 | C |
| ABC | 123 | Maths | 34 | B |
| DEF | 456 | Science | 44 | A |
| DEF | 456 | Maths | 33 | B |
Any recommendations on how i can do this in Power BI?
This works with your sample data
Please see the attached file for steps
let Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WcnRyVtJRMjQyBpJgwtgESIDEnJRidaKVXFzdgGwTUzMQCZIyBilyhMjHAgA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [Name = _t, ID = _t, Science_Marks = _t, Maths_Marks = _t, Science_Grade = _t, Maths_Grade = _t]), #"Changed Type" = Table.TransformColumnTypes(Source,{{"Name", type text}, {"ID", Int64.Type}, {"Science_Marks", Int64.Type}, {"Maths_Marks", Int64.Type}, {"Science_Grade", type text}, {"Maths_Grade", type text}}), #"Unpivoted Columns" = Table.UnpivotOtherColumns(#"Changed Type", {"Name", "ID"}, "Attribute", "Value"), #"Split Column by Delimiter" = Table.SplitColumn(#"Unpivoted Columns", "Attribute", Splitter.SplitTextByDelimiter("_", QuoteStyle.Csv), {"Subject", "Attribute.2"}), #"Changed Type1" = Table.TransformColumnTypes(#"Split Column by Delimiter",{{"Subject", type text}, {"Attribute.2", type text}}), #"Pivoted Column" = Table.Pivot(#"Changed Type1", List.Distinct(#"Changed Type1"[Attribute.2]), "Attribute.2", "Value"), #"Reordered Columns" = Table.ReorderColumns(#"Pivoted Column",{"Name", "ID", "Subject", "Grade", "Marks"}) in #"Reordered Columns"
1 Reply
- Zubair_Muhammad
Community Champion
This works with your sample data
Please see the attached file for steps
let Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WcnRyVtJRMjQyBpJgwtgESIDEnJRidaKVXFzdgGwTUzMQCZIyBilyhMjHAgA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [Name = _t, ID = _t, Science_Marks = _t, Maths_Marks = _t, Science_Grade = _t, Maths_Grade = _t]), #"Changed Type" = Table.TransformColumnTypes(Source,{{"Name", type text}, {"ID", Int64.Type}, {"Science_Marks", Int64.Type}, {"Maths_Marks", Int64.Type}, {"Science_Grade", type text}, {"Maths_Grade", type text}}), #"Unpivoted Columns" = Table.UnpivotOtherColumns(#"Changed Type", {"Name", "ID"}, "Attribute", "Value"), #"Split Column by Delimiter" = Table.SplitColumn(#"Unpivoted Columns", "Attribute", Splitter.SplitTextByDelimiter("_", QuoteStyle.Csv), {"Subject", "Attribute.2"}), #"Changed Type1" = Table.TransformColumnTypes(#"Split Column by Delimiter",{{"Subject", type text}, {"Attribute.2", type text}}), #"Pivoted Column" = Table.Pivot(#"Changed Type1", List.Distinct(#"Changed Type1"[Attribute.2]), "Attribute.2", "Value"), #"Reordered Columns" = Table.ReorderColumns(#"Pivoted Column",{"Name", "ID", "Subject", "Grade", "Marks"}) in #"Reordered Columns"