Query of query with left outer join

Question

Hi,
I cannot use joins in query of query, I try the old method using the ( + ) but no luck "Query Of Queries syntax error. Encountered ( + )."
Here is an example of my query code:
select p.part_id, s.supplier_name, s.second_name
from part p, supplier s
where p.supplier_id = s.supplier_id ( + )
and  p.second_id = s.second_id ( + );
PART SUPPLIER_NAME  SECOND_NAME
P1   Supplier#1     A
P2   Supplier#2
P3
P4
How can I do the same in query of query syntax?
Thanks!

Answer 1

I found a solution:
http://www.bealearts.co.uk/blog/2007/06/20/how-to-do-an-outer-join-in-query-of-queries/
I am not sure about my second condition. i create the join query for the empty columns.
select part.part_id, supplier.supplier_name, supplier.second_name
from part, supplier
where part.supplier_id = supplier.supplier_id
and  supplier.second_id is null
union
select part.part_id, supplier.supplier_name, supplier.second_name
from part, supplier
where part.supplier_id = supplier.supplier_id
and  part.second_id = supplier.second_id
union
select part.part_id, joinQuery.supplier_name, joinQuery.second_name
from part, joinQuery
where part.supplier_id not in (#ValueList(supplier.supplier_id)#)
Can anyone check and let me know if this is correct?
My final result have one less row from parts table.
Thanks