Re: order by date desc but NULLs last

> 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(at)cmu(dot)edu

order by gradetime is null asc, gradetime desc;

Regards,
Tomasz Myrta