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

select id, part_type, station_type 
from myTable t1
where exists (select 1 from myTable t2
              where t1.part_type = t2.part_type
                  and t1.station_type = t2.station_type
                  and t1.id <> t2.id)