Automize SQL TRACE for a selected session

Hi,
Should I automize the process of SQL Tracing for a particular session of our choice?
Lets say when there are several sessions, and we want to select the particular session for SQL TRACING, then the SQL tracing for that session enable via running a routine.
I used AFTER LOGON trigger for enabling SQL trace, but using this approach enable SQL TRACING all the sessions.
My Logon Trigger for enabling SQL Tracing:
create or replace trigger LOGON_SQL_TRACE
after logon on database
begin
execute immediate
'alter session set sql_trace=true';
end;
I want to use a perfect routine that first get the sid, serial# or username etc. from V$session, V$process or else, and then enable the SQL TRACING for the selected session.
Like SYS.DBMS.SYSTEM.SET_SQL_TRACE_IN_SESSION package is available for doing that or may be some others as well.
But how should we use these packages or other SQL tracing commands in a routine, which we can use for, enable SQL Tracing implicitly.
Any ideas will be great.
Bill

SYS.DBMS.SYSTEM.SET_SQL_TRACE_IN_SESSION is just fine.
You can get the SID and SERIAL# from v$session; you just have to know the username, osmachine, the OS process, ...
Fred

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Begin
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End if;
End;
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Hi,
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                i_gjahr     = vbrk-gjahr
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Delete documents from other fiscal year
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Hello,
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However, if I cannot change the code of this OCI client, is there a way to set SQL trace for that single session alone, without changing the C code? Say, through an environment variable, configuration file, etc.?
Thanks.

I am not aware of a way to selectively enable the server-side tracing without modifying the client code.
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Automize SQL TRACE for a selected session

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