Single query return multiple value

Question

Hi ALL,
I have a sql query as below :
select order_number,
(select decode(hcp.contact_point_purpose,'ABC',hcp.email_address,'CDE',hcp.email_address,null)
from hz_contact_points,
hz_parties hz
WHERE hz.party_id=hcp.owner_table_id) Email
FROM oe_order_headers_all h
WHERE h.order_number='102'
Actually the problem i am facing is the inner select query is returning multiple row , so my main query is erroring out, i need to capture the multiple row.
in the above example the inner decode statement returning two mail address, i need to capture that, but while executing the whole query it is erroring out as saying single query returns multiple values.
please help me on this to capture multiple values
Thanks

Answer 1

>
select order_number,
(select decode(hcp.contact_point_purpose,'ABC',hcp.email_address,'CDE',hcp.email_address,null)
from hz_contact_points,
hz_parties hz
WHERE hz.party_id=hcp.owner_table_id
/* a join is missing here that points to table oe_order_headers_all h*/) Email
FROM oe_order_headers_all h
WHERE h.order_number='102'
>
I can see a join missing in your select sub query.
However, if you you are still getting the single query return multiple value error then you need to replace the sql sub query
select decode(hcp.contact_point_purpose,'ABC',hcp.email_address,'CDE',hcp.email_address,null)
from hz_contact_points,
hz_parties hz
WHERE hz.party_id=hcp.owner_table_id)by decode(hcp.contact_point_purpose,'ABC',hcp.email_address,'CDE',hcp.email_address,null)
and join the two tables in you main query..
Regards
Biju
ED: Provide test script and your expected output to get what you want exacly!
Edited by: biju2012 on Sep 7, 2012 12:06 AM