Re: Help on SQL query

>>>>> "Ian" == Ian Tan <iantan1268@gmail.com> writes:

 Ian> How do I write an SQL query so that the "name" text in car_parts
 Ian> are added to the bill_of_materials table, so that it looks like
 Ian> this:

The only trick with this is that you need to join the car_parts table
twice (once for parent and once for child), and to do that you need to
give it different alias names:

select bom.parent_id,
       ppart.name as parent_name,
       bom.child_id,
       cpart.name as child_name
  from bill_of_materials bom
  join car_parts ppart on (ppart.id=bom.parent_id)
  join car_parts cpart on (cpart.id=bom.child_id);

-- 
Andrew (irc:RhodiumToad)