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nicolasvc's avatar
nicolasvc
Helper III
4 years ago
Solved

Add month column repeated by year using dax

I have a table in the sample the value of a product per year, from 2022 to 2025, and I would like to add the month column, in which it is repeated every month for every year. This can be done but only for a table that is one year old, and since it is several years old, I do not know how to repeat the procedure.

 

YearProductValue
2022A100
2022B1000
.........
2023A800
2023B500
.........
2025B300
.........

 

Result table:

 

YearMonthProductValue
20221A100
20221B1000
............
20222A100
...   
202512B300
............
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  • mahoneypat's avatar
    mahoneypat
    4 years ago

    Here's one way to do it in the query editor.  To see how it works, just create a blank query, open the Advanced Editor and replace the text there with the M code below.  You just need to add a custom column with {1..12} and then expand that to new rows.

     

    let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjIwMlTSUXIEYkMDA6VYHbiQExAbIYSMoKqMUYVAqkxAQrEA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Year = _t, Product = _t, Value = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Year", Int64.Type}, {"Product", type text}, {"Value", Int64.Type}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Month", each {1..12}),
    #"Expanded Month" = Table.ExpandListColumn(#"Added Custom", "Month"),
    #"Changed Type1" = Table.TransformColumnTypes(#"Expanded Month",{{"Month", Int64.Type}})
in
    #"Changed Type1"

     

    Pat

4 Replies

  • mahoneypat's avatar
    mahoneypat
    Microsoft Employee
    4 years ago

    Here's one way to do it in the query editor.  To see how it works, just create a blank query, open the Advanced Editor and replace the text there with the M code below.  You just need to add a custom column with {1..12} and then expand that to new rows.

     

    let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjIwMlTSUXIEYkMDA6VYHbiQExAbIYSMoKqMUYVAqkxAQrEA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Year = _t, Product = _t, Value = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Year", Int64.Type}, {"Product", type text}, {"Value", Int64.Type}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Month", each {1..12}),
    #"Expanded Month" = Table.ExpandListColumn(#"Added Custom", "Month"),
    #"Changed Type1" = Table.TransformColumnTypes(#"Expanded Month",{{"Month", Int64.Type}})
in
    #"Changed Type1"

     

    Pat

    • nicolasvc's avatar
      nicolasvc
      Helper III
      4 years ago

      Thanks for the help! I would have liked it in DAX, but I managed to change a few things to be able to use this solution in PQ!

  • VahidDM's avatar
    VahidDM
    Super User
    4 years ago

    Hi nicolasvc 

     

    Is that value for 2025-12-B  in the result table correct?

     

    Appreciate your Kudos!!