From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
---|---|
To: | Stoyan Genov <genov(at)digsys(dot)bg> |
Cc: | Dirk Lutzebaeck <lutzeb(at)aeccom(dot)com>, pgsql-sql(at)postgresql(dot)org |
Subject: | Re: [SQL] Howto to force NULL rows at the bottom ? |
Date: | 1999-12-05 22:56:28 |
Message-ID: | Pine.LNX.4.20.9912051642510.349-100000@localhost.localdomain |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-sql |
Always test everything you say. The NULLs will come out at the end no
matter which way you order it. There is a TODO item for this, but I
suspect that the function manager clean up needs to be completed first,
because there are a lot of subtle and not so subtle problems with NULLs
all over the place.
-Peter
On 1999-12-05, Stoyan Genov mentioned:
> Hi,
>
> If you bother about the NULLs positioned at the bottom of the selection,
> and not how
> non-NULL data is ordered, you can just use ORDER BY field DESC - this will
> position
> NULLs at the bottom, ordering non-NULL data from the highest values to the
> lowest.
>
> Regards,
> Stoyan Genov
>
> > Hi,
> >
> > how can I force NULL rows at the bottom of the result list in an
> > ordered SELECT?
> >
> > with ORDER BY I get
> >
> > NULL
> > Peter
> > Jane
> >
> > but I want
> >
> > Peter
> > Jane
> > NULL
> >
> > --
> > Dirk
> >
> > ************
> >
>
>
>
> ************
>
>
--
Peter Eisentraut Sernanders väg 10:115
peter_e(at)gmx(dot)net 75262 Uppsala
http://yi.org/peter-e/ Sweden
From | Date | Subject | |
---|---|---|---|
Next Message | Tom Lane | 1999-12-06 00:51:32 | Re: [SQL] Howto to force NULL rows at the bottom ? |
Previous Message | tjk@tksoft.com | 1999-12-05 18:03:58 | Re: [SQL] Accent Marks |