Re: Avoiding New Fields Causing Ambiguity Errors

From: Nis Jorgensen <>
Date: Thu, 16 May 2002 12:02:37 +0200
Message-ID: <>

On 15 May 2002 12:38:40 -0700, (Lennart Jonsson) wrote:

>> It seems that some database engines don't let one use
>> alias columns within WHERE clauses for some odd
>> reason.
>Sounds odd enough :-) How does one join a table with it self without using alias?
>Can you provide the name of the db so I know what to avoid in the future ;-)

There is a difference between "column aliases" and "table aliases". The first are defined in the SELECT, and might therefore not be available in the WHERE-clause (and certainly cannot be available in the FROM-clause.

Nis Jorgensen

Please include only relevant quotes, and reply below the quoted text. Thanks
Received on Thu May 16 2002 - 12:02:37 CEST

Original text of this message