Sub-query in order by clause

From: Ashish <ash03_at_att.net>
Date: Fri, 04 Apr 2003 08:33:49 -0800
Message-ID: <F001.0057A7C6.20030404083349@fatcity.com>

Hello list,

In Oracle 9.2.0.1, you can now order by using a single-row subquery Here is an example:

SELECT emp.deptno, empno, ename
FROM emp
ORDER BY ( SELECT deptno FROM dept

            WHERE dept.deptno = emp.deptno );

The question I have is what is the usefulness of this? Under which circumstances
this can be used? Any ideas?

-Ashish

OCP DBA
--

Please see the official ORACLE-L FAQ: http://www.orafaq.net
--

Author: Ashish
  INET: ash03_at_att.net

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