Re: IN ignore null values

From: <Jared.Still_at_radisys.com>
Date: Fri, 20 Feb 2004 09:18:35 -0800
Message-ID: <OF79A3199E.D2C04209-ON88256E40.005F08B9-88256E40.005F0131@radisys.com>

Actually, all this proves is that you have 310 rows in the table utl_tablas_me.
Jared

"Juan Cachito Reyes Pacheco" <jreyes_at_dazasoftware.com>
Sent by: oracle-l-bounce_at_freelists.org
02/20/2004 06:32 AM
Please respond to oracle-l

To: "antonio" <aore_at_dazasoftware.com>, "carlos" <cmonroy_at_dazasoftware.com>,
"daniel" <dvenegas_at_dazasoftware.com>, "danita" <dpuna_at_dazasoftware.com>,
"ivan" <ilujan_at_dazasoftware.com>, "jaime" <jdaza_at_dazasoftware.com>,
"javier" <jsalazar_at_dazasoftware.com>, "juan" <jdsanchez_at_dazasoftware.com>,
"luis" <lchalco_at_dazasoftware.com>, <oracle-l_at_freelists.org>, "richi"
<rpacheco_at_dazasoftware.com>

        cc: 
        Subject:        IN ignore  null values

An interesting observation

IN ignore null values as you can see in the table there are 310 null values
in column TBL_DSM.

SQL> select count(*) from daz.utl_tablas_me

2 where tbl_dsm in

3 (select null from daz.utl_tablas_me);

COUNT(*)

SQL> select count(*) from daz.utl_tablas_me

2 where exists(select null from daz.utl_tablas_me);

COUNT(*)

310

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Received on Fri Feb 20 2004 - 11:48:18 CST