Select Rows with matching columns from SQL Server

Question

I am fairly certain that this is something simple, but every example I have tried is failing. I want to query a table like this

ID   Part_Type   Station_Typ         


        

Answer 1

I think a self-join will work for you:

SELECT * FROM table t1 
INNER JOIN table t2 ON t1.Part_Type = t2.Part_Type 
  AND t1.Station_Type = t2.Station_Type
  AND t1.Id <> t2.Id