Select help - Mailing list pgsql-sql

From Linh Luong
Subject Select help
Date
Msg-id 3B0D7AB7.E0CBAACC@computalog.com
Whole thread Raw
List pgsql-sql
Hi,

I am trying to do a 2 joins between 3 tables.

ie) 
select <some field>, coalesce(TRR.ABC, SOC.ABC) as newABC, ...
from A join (B join C on (..)) on (..)) as TRR        left join 
(D join E on (..)) as SOC on (TRR.Field1=SOC.Field2)

When I run this it says that there is an ambiguous field.  Yes after the
join for TRR and SOC they both contain a fields name ABC.  How can I
rename this field in the sql statement or how can I make it so the sql
statement know that they are different.

Please help.. .thanks

-- 
Linh Luong
Computalog Ltd.
Software Developer
Phone: (780) 464-6686 (ext 325)
Email: linh.luong@computalog.com


pgsql-sql by date:

Previous
From: "postgresql"
Date:
Subject: ports in use question
Next
From: Kate Collins
Date:
Subject: Re: ports in use question