如何使用 Power Bi 中的 Power Query 编辑器从两列的不同值的选择中创建新列

Question

I need to insert in a new column the distinct values of two columns using the Power Query Editor Power Bi. Any ideas enter image description here guys?

Answer 1

Here you go:

let
    Source = SomeTable
    firstCol = Source[FirstColumn],
    secondCol = Source[SecondColumn],
    thirdCol = List.Sort(List.RemoveNulls(List.Distinct(List.Combine( {firstCol, secondCol})))),
    #"TableResult" = Table.FromColumns({firstCol, secondCol, thirdCol}, {"First","Second","Combined"})

in
    #"TableResult"

This basically converts your first and second columns into lists, and combines them into one new list. Next, it transforms the new list a bit to match your requirements -- first by getting just the distinct values, then dropping any null values, and lastly sorting it in ascending order.

Once that's done, we can take advantage of Table.FromColumns and create a table from our three lists.

That should get you where you're going.

Answer 2

Thanks Ryan.

My requirement was to create a distinct list of IP addresses from one of the columns in a Table.

Here's the code that worked for me.

= let
    Source = #"TABLENAME",
    firstCol  = #"TABLENAME"[Client Ip],
    IP = List.Distinct(firstCol),
    #"DistinctIP" = Table.FromColumns({IP}, {"IP"})
in
    #"DistinctIP"