From: | Kenny W Drobnack <kenny(dot)w(dot)drobnack(at)jpmchase(dot)com> |
---|---|
To: | Tony Liao <tonyliao(at)yuehetone(dot)com>, "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org> |
Subject: | Re: order by question |
Date: | 2009-06-19 14:39:55 |
Message-ID: | 6E25A151103CC340A1CB2CD7D44DCA4509BD84CAB4@EMASC218VS01.exchad.jpmchase.net |
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Thread: | |
Lists: | pgsql-admin |
I've never used "ORDER BY ....." in any of my queries. If you want to get the records in order by id, you would simply do "ORDER BY id". If you want them by product it would be "ORDER BY product_id".
Your best bet (depending on what you want) is likely "ORDER BY product_id, id" which will give you the records in order by product id and then if you have multiple records with the same product_id, it will also order by id. So your results would look like:
id product_id
12...............3....................................
10...............4................................
25...............4.................................
33...............6...................................
40...............6..................................
43...............7...................................
17...............10.................................
From: pgsql-admin-owner(at)postgresql(dot)org [mailto:pgsql-admin-owner(at)postgresql(dot)org] On Behalf Of Tony Liao
Sent: Friday, June 19, 2009 5:50 AM
To: pgsql-admin(at)postgresql(dot)org
Subject: [ADMIN] order by question
Hi,All
for example,I have a query as this
select id,product_id from table_name where product_id in (6,3,4,10,7) order by .....
the results I want to get as bellow:
id................product_id......................
33...............6...................................
40...............6..................................
12...............3....................................
25...............4.................................
10...............4................................
17...............10.................................
43................7...................................
any Idea? thanks
--
Tony Liao
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