Changing fields

[Anonymous]

Hi, here is my problem :

I am suppose to build data visualisation based on a data.csv file deposed by another company's service on a shared repository. But this service concerned may changes the first row of this file (corresponding to header's name) over time. I would like a solution to keep visualizations working even thow header names change. 

Is there a way to add a step in the query editor to say : "If a header's name is "Hello", "helo" or "helllo" rename it "hello" ? so i could build my data visualisation on the field named "hello".

Or any other solution ?

Let me know if I hadn't been clear. Thanks in advance.

[rajulshah · Accepted solution]

Hello @Anonymous,

You can create a function named 'Column Name Transformer' as below:

(name as text) as text =>
let
  #"Split into Parts" = Text.ToList(name),
  #"Change Case" =
    (input as text) as text =>
      if Comparer.Equals(Comparer.OrdinalIgnoreCase, "Hello", input) or Comparer.Equals(Comparer.OrdinalIgnoreCase, "helo", input) or Comparer.Equals(Comparer.OrdinalIgnoreCase, "helllo", input) 
      then "hello"
      else input,
    #"Transformed Parts" = List.Transform(#"Split into Parts", #"Change Case"),
    Result = Text.Combine(#"Transformed Parts")
in
  Result

And then you can add a line of code in Advanced Editor for that table as below:

#"Renamed Columns" = Table.TransformColumnNames(Previous Step,#"Column Name Transformer")

Hope this helps.