Missing Oracle trace file

Question

I gained a new database - and if it didnt have data in it or a PRODUCTION box I'd rebuild!
Windows Server 2003 Enterprise x64 Edition SP2 running 10g 10.2.0.3
Management Packs active: Database Diagnostics, Database Tuning, Database Configuration
user_dump_dest = c:\oracle\admiprod\udump
Executing:
select
u_dump.value || '/' ||
db_name.value || '_ora_' ||
v$process.spid ||
nvl2(v$process.traceid, '_' || v$process.traceid, null )
|| '.trc' "Trace File"
from
v$parameter u_dump
cross join v$parameter db_name
cross join v$process
join v$session
on v$process.addr = v$session.paddr
where
u_dump.name = 'user_dump_dest' and
db_name.name = 'db_name' and
v$session.audsid=sys_context('userenv','sessionid');
Results: C:\oracle\admin\prod\udump/prod_ora_388.trc (NOTE THE "/" IS CODED TO RETURN AS SUCH)
YET prod_ora_388.trc is NOT found at C:\oracle\admin\prod\udump OR anywhere on the C or associated D drives - any idea what is going on here, and if so how to correct it so the trc does show up?

Answer 1

Did You enabled session tracing for that particular user?
If not, the of course You will find no trace file, just the possible name will be returned and path.
For first enable tracing, then look at trace directory for particular file.
And / is returned just because script is for unix. In your case you should replace it with \ as it is windows env.
and it's easier to identify trace files just adding some identifier to them with
alter session set tracefile_identifier ="some_name";
then in udump dierctory just search for this name.