Re: order by

Thanks Justin

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Friday, January 02, 2004 00:39

> At 10:44 AM 1/1/2004, you wrote:
> >I was curious to find out why all the other sorts work the same but order
by
> >dbms_random.value ( which also returns a number like sqrt (3.14) )
behaves
> >totally different. Any ideas ?
>
> When you order by dbms_random, Oracle will generate a random number for
> each row and sort on those random numbers. When you order by a constant
> real value, Oracle has no way to order the results, so they will be
> returned in whatever order they are retrieved from the database.
>
> >Also could you please tell me what does it mean when someone says order
by
> ><non integer some_constant> . An integer constant would refer to the
> >positional parameter but what about a real value which is not an integer
?
>
> Aside from SQL brain-teasers, I cannot imagine a practical use for ORDER
BY
> <<constant real number>>.
>
>
> Justin Cave
> Distributed Database Consulting
>
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> Please see the official ORACLE-L FAQ: http://www.orafaq.net
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> Author: Justin Cave
> INET: jcave_at_cableone.net
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