From: | Linh Luong <linh(dot)luong(at)computalog(dot)com> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Select help |
Date: | 2001-05-24 21:18:47 |
Message-ID: | 3B0D7AB7.E0CBAACC@computalog.com |
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Thread: | |
Lists: | 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(dot)luong(at)computalog(dot)com
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