Forum Discussion
merging columns with rules
How can I merge two columns into new column (col C) where if col A and B are equal then it should only give me the value of what is first column. If they are not equal then merge two columns together?
| Col A | Col B | New Column (Col C) |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Example Match | Example Match | Example Match |
| Muscle Shoals | Muscle Shoals | |
| Junuea | Junuea | |
| New City | Florida | New CityFlorida |
| New City | Jupiter | New CityJupiter |
| New City | Jupiter | New CityJupiter |
| Fort Lauderdale | Fort Lauderdale | |
| Miami | Miami |
You could add this as a new calculated column:
Col C = IF ( [Col A] = [Col B], [Col A], [Col A] & [Col B] )
3 Replies
You could add this as a new calculated column:
Col C = IF ( [Col A] = [Col B], [Col A], [Col A] & [Col B] )
jdbuchanan71 Thank you, that worked!
jcastr02
If you do this in Power Query, you can use this formula in a custom column. You could then remove the other two columns and onlhy bring in the final column to Power BI if you wish.if [Col A] = [Col B] then [Col A] else Text.Trim([Col A] & " " & [Col B])It generates the 3rd column here:
Full M code is here:
let Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45Wcq1IzC3ISVXwTSxJzlDSQePH6oyqGKwqfEuLk4ECwRn5iTnFQBVgQa/SvNLURBjPL7VcwTmzpBLId8vJL8pMSUQX9iotyCxJLcIn7JZfVKLgk1iaklqUkpiTCjPbNzMxNxPMiQUA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Col A" = _t, #"Col B" = _t]), #"Added New Column" = Table.AddColumn(Source, "New Column", each if [Col A] = [Col B] then [Col A] else Text.Trim([Col A] & " " & [Col B])), #"Changed Type" = Table.TransformColumnTypes(#"Added New Column",{{"New Column", type text}}) in #"Changed Type"How to use M code provided in a blank query:
1) In Power Query, select New Source, then Blank Query
2) On the Home ribbon, select "Advanced Editor" button
3) Remove everything you see, then paste the M code I've given you in that box.
4) Press Done
5) See this article if you need help using this M code in your model.
