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Date: Thu, 16 Feb 2006 23:41:28 +0100
From: Markus Schaber <schabi@logix-tt.com>
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To: Mark Fenbers <Mark.Fenbers@noaa.gov>
CC: PostgreSQL - SQL <pgsql-sql@postgresql.org>
Subject: Re: group by complications
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Hi, Mark,

Mark Fenbers schrieb:
> Wow!  I didn't know you could have a (select ...) as a replacement for a
> 'from' table/query.  Your SQL worked as-is, except I had to add a 'limit
> 1' to the first subquery.
> 
> Thanks!  I would have never figured that out on my own!

SQL has more power than most think, and PostgreSQL does a good job in
implementing most of it. Much more than some other well known "free"
databases.

Have a look at http://www.postgresql.org/docs/8.1/static/sql-select.html
and the other SQL commands at
http://www.postgresql.org/docs/8.1/static/sql-commands.html (or your
local copy of the manual).

HTH,
Markus