From: A.M. <agentm@cmu.edu>
To: pgsql-sql@postgresql.org
Subject: order by date desc but NULLs last
Date: Sun, 9 Feb 2003 17:29:29 -0500
Message-ID: <F427C52A-3C7D-11D7-A094-0030657192DA@cmu.edu> (raw)
I have a simple query that sorts by descending date but the NULL dates
show up first. Is there a way I can sort so they come last without
sorting ascending?
SELECT submittime,score,gradedtime FROM student_gradedmaterial WHERE
gradedmaterialid=3 and studentid=102 order by gradedtime desc;
submittime | score | gradedtime
---------------------+-------+----------------------------
2003-01-30 22:56:38 | |
2003-01-31 03:42:29 | 99 | 2003-02-06 14:21:43.043587
but what I want is all the graded items first in gradedtime desc and
NULL afterwards. I do need to keep the NULL score rows. (So I get the
latest submitted grade for the assignment but also any ungraded
submission information.)
Thanks for any advice.
><><><><><><><><><
AgentM
agentm@cmu.edu
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To: pgsql-sql@postgresql.org
Cc: agentm@cmu.edu
Subject: Re: order by date desc but NULLs last
In-Reply-To: <F427C52A-3C7D-11D7-A094-0030657192DA@cmu.edu>
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