bulbultyagi_at_now-india.net.in wrote:
>
> Hello list,
> Can someone please explain to me why the following order by clauses are
> valid and yield the same results :
>
> select empno, deptno from emp
> order by sqrt (1) ;
>
> and
>
> select empno, deptno from emp
> order by sqrt ( 3.14234 ) ;
>
> The docs say that in the order by clause you could specify only (a) column
> names or (b) positional parameters or (c) expressions involving the columns
>
A constant falls under the c) category. It's an expression, which
involves anything you want. That said, I fail to see any practical use
.
--
Regards,
Stephane Faroult
Oriole Software
--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Stephane Faroult
INET: sfaroult_at_oriole.com
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Received on Sun Dec 28 2003 - 16:04:24 CST
