Forum Discussion
Add column with sixth previous month
Hi everyone, I need to add a new custom column with sixth previous month in Power Query. I thinked to use that formula but it don't function : = Table.AddColumn(#"Type modifié", "Extract_mont...
Hello - please post an example of your data and the response you are getting after applying your formula.
Thanks jennratten for your answer,
I want this in Power Query :
| Extract_Month bis | Extract_Month -6 |
| juil-22 | null |
| juil-22 | null |
| juil-22 | null |
| juil-22 | null |
| juin-22 | null |
| juin-22 | null |
| juin-22 | null |
| mai-22 | null |
| avr-22 | null |
| mars-22 | null |
| mars-22 | null |
| févr-22 | févr-22 |
| févr-22 | févr-22 |
| févr-22 | févr-22 |
| févr-22 | févr-22 |
| févr-22 | févr-22 |
| janv-22 | null |
| déc-21 | null |
| nov-21 | null |
| nov-21 | null |
| nov-21 | null |
| nov-21 | null |
I have no result with my formula above
Here you are...
let Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WyirNzNE1MlKK1SGanUeInZuYCWMmlhUhRIuKsbHTDq9EKCKHk5WYVwZjpxxemaxrZAhm5+WXEceMBQA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Extract_Month bis" = _t]), ExtractMonth6= Table.AddColumn ( Source, "Extract_Month -6", let varMonths = List.Distinct ( Source[Extract_Month bis] ) in each if [Extract_Month bis] = varMonths{5} then [Extract_Month bis] else null ) in ExtractMonth6jennratten thanks for your answer,
But I would just add a new custom column in my table which have already lot of column .... I can't use this code I think.
Hello again - the solution above creates a table that matches your post "I want this in Power Query". If you are wanting something different, can you please describe the expected results?