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RE: LOGON/LOGOFF Trigger Issue

From: Sami <jaysingh1_at_optonline.net>
Date: Sun, 11 Jan 2004 13:14:24 -0800
Message-ID: <F001.005DC69C.20040111131424@fatcity.com>


Dear Mladen,

Thanks for your response.

SYS and REPADMIN users are keep on LOGGING-IN and LOGGING-OUT periodically in the background.
That is why SYS user got deleted(when automatic LOG-OUT happens).

Anyway I'll try auditing feature as you suggested.

Thanks again,
Sami

-----Original Message-----
Mladen Gogala
Sent: Sunday, January 11, 2004 2:04 PM
To: Multiple recipients of list ORACLE-L

What happens is that you have a database wide logon trigger, not just a trigger on scott.schema which needs an execution context. A pseudo session with a SID=0 is established and the trigger is executed. Personally, I would use auditing ("audit session" or "audit session by scott"),
not a database trigger.

On 2004.01.11 12:54, Sami wrote:
> Hi
>
> I am trying to maintain currently connected users list using LOGON/LOGOFF
> triggres.
> But I am experiencing some unexpected behavior for SYS user.
>
>
> CREATE OR REPLACE TRIGGER SCOTT.LOGON_TRIG
> AFTER LOGON ON DATABASE
> BEGIN
> insert into logon_info
>

values(SYS_CONTEXT('USERENV','SESSIONID'),SYS_CONTEXT('USERENV','INSTANCE'),
> SYS_CONTEXT('USERENV','HOST'),USER,SYS_CONTEXT('USERENV',
> 'session_user'),sysdate);
> END;
> /
>
> CREATE OR REPLACE TRIGGER SCOTT.LOGOFF_TRIG
> BEFORE LOGOFF ON DATABASE
> BEGIN
> delete logon_info where

SESSIONID_NUMBER=SYS_CONTEXT('USERENV','SESSIONID');
> END;
> /
>
> ================================================================
> Initiated TWO session using SYS and SCOTT in a separate window
> ================================================================
>
> SQL> desc scott.logon_info
> Name Null? Type
> ----------------------------------------- -------- ----------------------
-
> SESSIONID_NUMBER VARCHAR2(50)
> INSTANCE_NUMBER VARCHAR2(36)
> HOST_NAME VARCHAR2(36)
> USER_NAME VARCHAR2(36)
> SESSION_USER VARCHAR2(36)
> LOGONDATE DATE
>
>
> SQL>set head off
> SQL> set time on
> 19:01:01 SQL> select * from loon_info;
>
> 0
> 1
> DELTA\SSEERANG
> SYS
> SYS
> 10-JAN-04
>
> 1411
> 1
> DELTA\SSEERANG
> SCOTT
> SCOTT
> 10-JAN-04
>
>
>



> BOTH users(SCOTT,SYS) remain connected but SESSIONID 0 disappeared.
>


> 19:07:05 SQL> /
>
> 1411
> 1
> DELTA\SSEERANG
> SCOTT
> SCOTT
> 10-JAN-04
>
>
> SQL>
>
>
> What could be the reason?
>
> Thanks
> Sami
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Sami
> INET: jaysingh1_at_optonline.net
>
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--
Mladen Gogala
Oracle DBA
--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Mladen Gogala
  INET: mgogala_at_adelphia.net

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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Sami
  INET: jaysingh1_at_optonline.net

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Received on Sun Jan 11 2004 - 15:14:24 CST

Original text of this message

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