l i n u x - u s e r s - g r o u p - o f - d a v i s
L U G O D
 
Next Meeting:
November 4: Social gathering
Next Installfest:
TBD
Latest News:
Oct. 24: LUGOD election season has begun!
Page last updated:
2004 May 07 22:11

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

Report this post as spam:

(Enter your email address)
Re: [vox-tech] MySQL 3.x - deleting orphan rows & datetime()
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [vox-tech] MySQL 3.x - deleting orphan rows & datetime()



On Fri, 7 May 2004, Jeff Newmiller wrote:

> On Fri, 7 May 2004, Foo Lim wrote:
> 
> > On Fri, 7 May 2004, David Siedband wrote:
> > 
> > > Greetings,
> > > 
> > > I have two questions - using MySQL 3.x
> > > 
> > > [1] I'm trying to craft an SQL query to delete orphan rows in index 
> > > tables
> > > 
> > > something like:
> > > 
> > > delete from DocWords left join Docs on Docs.ID = DocWords.DocID where 
> > > Doc.ID is null
> > > 
> > > Any suggestions how to do this?
> > 
> > Hi David,
> > 
> > Try using a subquery:
> > 
> > delete from DocWords
> > where DocID not in
> > (select ID from Docs);
> 
> Subqueries are not implemented in MySQL 3.x.

Well, that sucks!

(Ducks...)

Foo
PostgreSQL user

_______________________________________________
vox-tech mailing list
vox-tech@lists.lugod.org
http://lists.lugod.org/mailman/listinfo/vox-tech



LinkedIn
LUGOD Group on LinkedIn
Sign up for LUGOD event announcements
Your email address:
facebook
LUGOD Group on Facebook
'Like' LUGOD on Facebook:

Hosting provided by:
Sunset Systems
Sunset Systems offers preconfigured Linux systems, remote system administration and custom software development.

LUGOD: Linux Users' Group of Davis
PO Box 2082, Davis, CA 95617
Contact Us

LUGOD is a 501(c)7 non-profit organization
based in Davis, California
and serving the Sacramento area.
"Linux" is a trademark of Linus Torvalds.

Sponsored in part by:
Appahost Applications
For a significant contribution towards our projector, and a generous donation to allow us to continue meeting at the Davis Library.