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nbcholst
Frequent Visitor

Is it possible to create a table based on combining two columns

Hi All,

 

I have a table that has a list of Items - A,B,C, etc.

 

I also have a table that has a value matched to each item. So A = 3, B = 4, C = 2, etc.

 

I want to create a table of unique Letter - Value combinations, where the Letter is matched to increments of 1 up until the Value, so the rows look like this:

A1

A2

A3

B1

B2

B3

B4

C1

C1

 

Is this possible in PowerBI? What's the best way to create something like this without manually creating a table in Excel?

1 ACCEPTED SOLUTION
Ashish_Mathur
Super User
Super User

Hi,

 

You only need one table to solve this problem - the second one.  You will have to use the following M code in Power Query

 

let
    Source = Excel.CurrentWorkbook(){[Name="Data"]}[Content],
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Items", type text}, {"Repeat till", Int64.Type}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Start from", each 1),
    #"Reordered Columns" = Table.ReorderColumns(#"Added Custom",{"Items", "Start from", "Repeat till"}),
    #"Added Custom1" = Table.AddColumn(#"Reordered Columns", "Custom", each { Number.From([Start from])..Number.From([Repeat till]) }),
    #"Expanded Custom" = Table.ExpandListColumn(#"Added Custom1", "Custom"),
    #"Removed Columns" = Table.RemoveColumns(#"Expanded Custom",{"Start from", "Repeat till"}),
    #"Changed Type1" = Table.TransformColumnTypes(#"Removed Columns",{{"Custom", type text}}),
    #"Added Custom2" = Table.AddColumn(#"Changed Type1", "Custom.1", each [Items]&[Custom]),
    #"Renamed Columns" = Table.RenameColumns(#"Added Custom2",{{"Custom.1", "Result"}}),
    #"Removed Columns1" = Table.RemoveColumns(#"Renamed Columns",{"Items", "Custom"})
in
    #"Removed Columns1"

Untitled.png


Regards,
Ashish Mathur
http://www.ashishmathur.com
https://www.linkedin.com/in/excelenthusiasts/

View solution in original post

1 REPLY 1
Ashish_Mathur
Super User
Super User

Hi,

 

You only need one table to solve this problem - the second one.  You will have to use the following M code in Power Query

 

let
    Source = Excel.CurrentWorkbook(){[Name="Data"]}[Content],
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Items", type text}, {"Repeat till", Int64.Type}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Start from", each 1),
    #"Reordered Columns" = Table.ReorderColumns(#"Added Custom",{"Items", "Start from", "Repeat till"}),
    #"Added Custom1" = Table.AddColumn(#"Reordered Columns", "Custom", each { Number.From([Start from])..Number.From([Repeat till]) }),
    #"Expanded Custom" = Table.ExpandListColumn(#"Added Custom1", "Custom"),
    #"Removed Columns" = Table.RemoveColumns(#"Expanded Custom",{"Start from", "Repeat till"}),
    #"Changed Type1" = Table.TransformColumnTypes(#"Removed Columns",{{"Custom", type text}}),
    #"Added Custom2" = Table.AddColumn(#"Changed Type1", "Custom.1", each [Items]&[Custom]),
    #"Renamed Columns" = Table.RenameColumns(#"Added Custom2",{{"Custom.1", "Result"}}),
    #"Removed Columns1" = Table.RemoveColumns(#"Renamed Columns",{"Items", "Custom"})
in
    #"Removed Columns1"

Untitled.png


Regards,
Ashish Mathur
http://www.ashishmathur.com
https://www.linkedin.com/in/excelenthusiasts/

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