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Re: NULLS FIRST option in CREATE INDEX?

From: Daniel Morgan <damorgan_at_exxesolutions.com>
Date: Mon, 16 Jun 2003 16:25:04 -0700
Message-ID: <3EEE51D0.53554645@exxesolutions.com>


Tanel Poder wrote:

> Hi!
>
> You should never rely on ordering that comes from using an index. If the
> index is not used for some reason, or fast full scan is used, you will
> probably get completely different-ordered result. Order by is a must if you
> want order.
>
> Tanel.
>
> <snipped>

To which it should be added that Oracle doesn't index NULLs.

--
Daniel Morgan
http://www.outreach.washington.edu/extinfo/certprog/oad/oad_crs.asp
damorgan_at_x.washington.edu
(replace 'x' with a 'u' to reply)
Received on Mon Jun 16 2003 - 18:25:04 CDT

Original text of this message

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