Re: How to find entries missing in 2nd table?

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От Richard Broersma Jr
Тема Re: How to find entries missing in 2nd table?
Дата
Msg-id 20060711170339.65498.qmail@web31809.mail.mud.yahoo.com
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Ответ на How to find entries missing in 2nd table?  (alex-lists-pgsql@yuriev.com)
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--- Richard Broersma Jr <rabroersma@yahoo.com> wrote:

> > >> I need to get all entries from the table control that are not listed in
> > >> datapack.
> > > 
> > > SELECT C.CONTROLLER_ID
> > > 
> > > FROM CONTROL AS C 
> > >   LEFT JOIN DATAPACK AS D ON ( C.CONTROLLER_ID = D.CONTROLLER_ID)
> > > 
> > > WHERE D.CONTROLLER_ID IS NULL;
> > > 
> > 
> > 
> > Or
> > (SELECT controller_id FROM control)
> > EXCEPT
> 
> Good point!  But don't forget to include the list. :-)
> 
> Regards,
> 
> Richard Broersma Jr.
> > (SELECT controller_id FROM datapack)
> > ?
> > 
> > -- 
> > Milen A. Radev
> > 
> 
> 



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