From: q2005 <q2005@tpg.com.au>
To: pgsql-sql@postgresql.org
Subject: the best way to get the first record from each group
Date: Sat, 5 Feb 2005 00:13:36 +1000
Message-ID: <009401c50ac3$b841d5f0$1400a8c0@jac> (raw)
Hi,
Is there any better alternative to get the first record from each group?
"subno" is an integer, record with the smallest subno in each group is the
first record in the group.
select itemno, measureunit, extaxprice from itmt_purchase
where subno in (select min(subno)as subno
from itmt_purchase
group by itemno order by itemno)
order by itemno, measureunit;
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To: pgsql-sql@postgresql.org
Cc: q2005@tpg.com.au
Subject: Re: the best way to get the first record from each group
In-Reply-To: <009401c50ac3$b841d5f0$1400a8c0@jac>
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