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From: dima <_pppp@mail.ru>
To: jack <datactrl@tpg.com.au>
Cc: pgsql-sql@postgresql.org
Subject: Re: the best way to get the topest 3 record in every group
Date: Mon, 09 Sep 2002 10:34:48 +0400
Message-ID: <3D7C4108.70407@mail.ru> (raw)
References: <002201c25796$d923d3f0$1400a8c0@jac>

> There is a table like :
> <<
> itemNo
> supplier
> purchaseDate
> Price
> Qty
> <<
> Please provide an idea if I want to get the latest 3 puchase records for
> each item and supplier. Thank you in advance.
select * from table_name where supplier=value order by purchaseDate desc 
limit 3
???





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