Union two columns from two tables together in Power Query

[JemmaD]

Hi there,

I have two tables : Policies and Quotes. In both tables is a column called [Product]

I want to create a dimension table holding distinct values of [Product] from both Policies and Quotes tables. 

I want to do this in m query, not Dax.

Please help with the syntax! 

[JemmaD]

I got this:

= Table.Combine({Table.FromColumns({Policies[Product]}, {"Product"}), Table.FromColumns ({Quotes[Product]}, {"Product"})})
But it doesn't create a distinct list

[JemmaD · Accepted solution]

Solved! Just stick a Table.Distinct in front of the Table.Combine query and add an additional close parameter at the end of the query:

= Table.Distinct(Table.Combine({Table.FromColumns({Policies[Product]}, {"Product"}), Table.FromColumns ({Quotes[Product]}, {"Product"})}))

[ITManuel]

Hi @JemmaD ,

you can do this pretty easily via the graphical interface in Power Query.

1. Append the two tables as new tables

2. Remove all columns except [Product]

3. Remove duplicates from the column [Product]

This would be the M code

let
    Source = Table.Combine({Policies, Quotes}),
    #"Removed Other Columns" = Table.SelectColumns(Source,{"Product"}),
    #"Removed Duplicates" = Table.Distinct(#"Removed Other Columns")
in
    #"Removed Duplicates"

[JemmaD]

Apparently there is a way to select the Product column within the Table.Combine argument, I just can't get the syntax right.