M Code query

[prabhuk]

Hi Friends,

I need to have a cod for the belwo senario

In a sheet Colomn "A" has "Grade 1" and Column "B" has "USA" and Column"C" has "Apple"  then rest of the rows where ever Column "B" has "USA" and column"C" has "Apple" colume "A" to be updated with "Grade1"

In a netshell if Column A has some string same to be repeated  in the rest of the row in Colomn A where ever column B&C data's are matching.

Can we bring this in power query "M Code" ?

Regrds,

Prabhu   

[Fowmy · Accepted solution]

@prabhuk 

Create a blank Query, go to the Advanced Editor, clear the existing code, and paste the codes give below and check the steps. I attached the file below my signature.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45Wci9KTElVMFTSUQoNdgSSjgEBPq5KsTowGWOgmLOjn6MLSNIJyPBzBMti0QAS8kYXwaXXG4tdRkAxb7Ch/kGOfu6ueCzCUIZwLaYbUPTHAgA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Column A" = _t, #"Column B" = _t, #"Column C" = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column A", type text}, {"Column B", type text}, {"Column C", type text}}),
    #"Replaced Value" = Table.ReplaceValue(#"Changed Type","",null,Replacer.ReplaceValue,{"Column A"}),
    #"Added Custom" = Table.AddColumn(#"Replaced Value", "Grades", each Table.SelectRows(#"Replaced Value", (x)=>  x[Column A]<>null and x[Column B] = [Column B] and x[Column C] = [Column C] )[Column A]{0})
in
    #"Added Custom"