Extract specific text from a column

[Anonymous]

Hello,

I have a column with some values 

Exemple : 

P1,A,P2

P2,B,C,P1

P3,A,P1,D,E,G

Etc ...

I only want to extract P1, P2 and P3 (the result of what i want to extract is known) to result in

P1,P2

P2,P1

P3,P1

Do you know how to do this ? I have absolutely no idea ...

I thought of if Text in {"P1","P2","P3"} ...

Thank you in advance

[tackytechtom]

Hi @Anonymous ,

Here one way of doing this:

Here the code in Power Query M that you can paste into the advanced editor (if you do not know, how to exactly do this, please check out this quick walkthrough)

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WCjDUcdQJMFKK1QGyjXScdJx1AgwhPGOQjKGOi46rjrtSbCwA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [column = _t]),
    #"Added Custom" = Table.AddColumn(Source, "Custom", each Text.Split([column], ",")),
    #"Expanded Custom" = Table.ExpandListColumn(#"Added Custom", "Custom"),
    #"Filtered Rows" = Table.SelectRows(#"Expanded Custom", each Text.Contains([Custom], "P1") or Text.Contains([Custom], "P2") or Text.Contains([Custom], "P3")),
    #"Grouped Rows" = Table.Group(#"Filtered Rows", {"column"}, {{"newcolumn", each Text.Combine( [Custom], ","), type text}}
)
in
    #"Grouped Rows"

Let me know, if this helps 🙂

/Tom
https://www.tackytech.blog/
https://www.instagram.com/tackytechtom/

[ronrsnfld]

You can use the List.Intersect function:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WCjDUcdQJMFKK1QGyjXScdJx1AgwhPGOQjKGOi46rjrtSbCwA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Extract", each 
        Text.Combine(
            List.Intersect(
                {Text.Split([Column1],","),{"P1","P2","P3"}})
            ,","),type text)
in
    #"Added Custom"