Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> comp.databases.theory -> Re: Simple SQL?

Re: Simple SQL?

From: Jan Hidders <hidders_at_REMOVE.THIS.win.tue.nl>
Date: 21 May 2001 07:42:23 GMT
Message-ID: <9eagsv$qmh$1@news.tue.nl>

Pierre G. Boutquin wrote:
> "Isaac Blank" <izblank_at_yahoo.com> wrote in message
> news:u9XN6.91$At.114013_at_news.pacbell.net...
> > First, not every SELECT with subqueries can be converted to a
> > join
>
> Hmmm. Are you sure your assertion is correct?

I think he is. :-) Especially 'NOT IN' and 'NOT EXISTS' subqueries can usually not be expressed with joins.

-- 
  Jan Hidders
Received on Mon May 21 2001 - 02:42:23 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US