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: [EMAIL PROTECTED]
>
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--
Mladen Gogala
Oracle DBA
--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Mladen Gogala
  INET: [EMAIL PROTECTED]

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-- 
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-- 
Author: Sami
  INET: [EMAIL PROTECTED]

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