create a table like this:
id | parent_id | category

parent_id points to the parent categories id. Top
level categories get parent_id of '0'

ex:
1 | 0 | auto
2 | 1 | repair
3 | 2 | body 
4 | 2 | windshields
5 | 1 | detailing
6 | 2 | tires

Tree would look like:
auto
   repair
      body 
      windshields
      tires
   detailing

olinux



--- hassan <[EMAIL PROTECTED]> wrote:
> HI,
>          >For trees you need self joins.
> 
> Could You please explain that ?
> 
> Regards,
> 
> 
> At 19:11 23/05/02, Georg Richter wrote:
> >On Thursday, 23. May 2002 16:16, Sagi Bashari
> wrote:
> >Hi,
> >
> ><snip>
> > >
> > > How can I get MySQL to sort it like that? I
> tried to use group/order by,
> > > but I cannot get it to sort it this way..
> > >
> > > Any ideas?
> ></snip>
> >
> >For trees you need self joins.
> >
> >Regards
> >
> >
> >Georg
> >
> >
> >mysql, query
> >
>
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> ___________________________________________________
> Hassan El Forkani
> Founder And Mantainer of :
> http://WarmAfrica.com EveryOne's Africa
> Freelance Internet Consultant / Web Applications
> Developper.
> Email: [EMAIL PROTECTED]
> Tel : 0021671880014
> ___________________________________________________
> 
> 
>
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