I've used the following trigger successfully in the past, under Oracle = 8.1.7. You need to grant ALTER SESSION directly to the trigger owner. = In hindsight, it would probably be better to update it to "after logon = on schema" (don't recall why I did it this way), but it works fine = as-is. ----- <snip> ----- create or replace trigger set_trace after logon on database DECLARE username varchar2(30); BEGIN username :=3D sys_context('USERENV','SESSION_USER'); if username =3D 'LLWEBC' then execute immediate 'ALTER SESSION SET EVENTS ''10046 TRACE NAME = CONTEXT FOREVER, LEVEL 4'''; end if; END; / ----- <snip> ----- It would probably=20 -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Ken Payton Sent: Thursday, May 13, 2004 8:44 AM To: oracle-l@xxxxxxxxxxxxx Subject: trace via logon trigger Anyone have any tips on setting up a logon trigger for initiating a =3D 10046 event. I tried the following but although it shows no errors it = =3D does not start the session tracing. execute immediate 'alter session set events ''10046 trace name context = =3D forever, level 4'' '; ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------