Re: Basic Database Question

From: Greg Moore <sqlgreg_at_pacbell.net>
Date: Wed, 15 May 2002 15:53:48 -0800
Message-ID: <F001.00461C43.20020515155348@fatcity.com>

Strange problem with charactersetsemp has 20 rows dept has 0 rows

select ename
  from emp e
 where not exists (

         select 'x'
           from dept d
          where e.deptno = d.deptno
       );

This one too will return rows even though dept has no rows.   So what i'm asking is if any one table in a select contains no data will the select always return no rows ?

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Author: Greg Moore
  INET: sqlgreg_at_pacbell.net

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