Re: ANSI join syntax
- From: Paul Baumgartel <paul.baumgartel@xxxxxxxxx>
- To: Oracle-L <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 6 Apr 2005 21:54:07 -0400
Jonathan,
Thank you! That is exactly what I was looking for, and it makes perfect sense.
Regards,
Paul
On Apr 6, 2005 9:42 PM, Jonathan Gennick <jonathan@xxxxxxxxxxx> wrote:
> Hello Paul,
>
> It *can* make a difference when you move a predicate from the
> WHERE clause into the JOIN clause. (It surprised me too) Have a look
> at the following article:
>
> http://www.oreillynet.com/pub/a/network/2002/10/01/whatsinacondition.html
>
> So far as I've ever been able to determine, moving a predicate between
> WHERE and JOIN can only possibly make a difference when outer-joins
> are involved. In essense, if you "say" it is a join predicate, then
> SQL treats it like one. Again, as I admit in the article, I was caught
> out once myself by this behavior.
>
> Best regards,
>
> Jonathan Gennick --- Brighten the corner where you are
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