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From: Gary Stainburn <gary.stainburn@ringways.co.uk>
To: pgsql-sql@postgresql.org
Subject: left outer join only select newest record
Date: Wed, 23 May 2012 10:27:39 +0100
Message-ID: <201205231027.39198.gary.stainburn@ringways.co.uk> (raw)

Hi folks,

I know I've seen posts like this before but Google isn't helping today.

I have two tables, vehicle stock and tax requests. Each vehicle can be taxed 
more than once, but I only want to pull in the most recent tax request - the 
one with the highest ud_id.

I have the following, which obviously returning multiple records which then 
appears that the same vehicle is in stock multiple times.  How can I make it 
so we only show each vehicle once, showing the most recent tax request 
details.


select * from stock_details s
left outer join used_diary u on s.s_registration = u.ud_registration;


-- 
Gary Stainburn
Group I.T. Manager
Ringways Garages
http://www.ringways.co.uk 



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