RE: trace via logon trigger

From: Ken Payton <Ken.Payton_at_choicepointprg.net>
Date: Thu, 13 May 2004 16:52:32 -0400
Message-ID: <91E3FFBB780D6945B8A5D90569A74461CA2F87@bobwpmsg001.choicepoint.net>

This was my solution, although for some reason I was having trouble with = the tick's.

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org]On Behalf Of Wolfgang Breitling Sent: Thursday, May 13, 2004 10:31 AM
To: oracle-l_at_freelists.org
Subject: RE: trace via logon trigger

I don't like to use a wider scope than necessary to solve a problem, = i.e.=20
use a "logon on database" trigger when a "logon on schema" is = sufficient.=20
Limit potential damage to the smallest possible exposure.

This works for me:

SQL> create user kpayton identified by kpayton;

User created.

SQL> create or replace trigger kpayton.logon_trigger

   2 after logon on kpayton.schema
   3 begin
   4 execute immediate 'alter session set events ''10046 trace name=20 context forever, level 4''';

   5 exception
   6 when others then null;
   7 end;
   8 /

Trigger created.

SQL> show errors
No errors.
SQL> PS. Just because it works outside the trigger doesn't mean it will work=20 inside the trigger. User kpayton needs the "alter session" privilege=20 granted explicitly and directly.

At 07:58 AM 5/13/2004, you wrote:
>This should work...
>create or replace trigger set_system_event
>after logon on database
>declare
>v_user dba_users.username%TYPE:=3Duser;
>sql_stmt1 varchar2(256) :=3D'alter session set events =
'||chr(39)||'10046
>trace name context forever, level 12'||ch
>r(39);
>begin
> if (v_user=3D'XXXX') THEN
> execute immediate sql_stmt1;
> end if;
>end;
>/

regards

Wolfgang Breitling
Centrex Consulting Corporation
www.centrexcc.com=20

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Received on Thu May 13 2004 - 18:05:50 CDT