How to catch SSO userid and store it in deployment database?

Hi,
Environment: OID,Portal,forms,reports 9.0.2.3
How do I do if I have a SSO user, lets say DAVE, and he has a resource pointing to a Deployment database un/pw@ORAC? When he has made his SSO login and choose a form I want store his real userid in the database ORAC. For example in v$session and in a history table. I want to be able to trace a blocking session back to the real user.

Hi i
from the form i set the default value of the field form_user_name PORTAL.WWCTX_API.GET_USER and the default fomat type to expression return varchar
Now
=======
the authenticated user id appears in the field form_user_name and is inserted properly in the oirder table
Question
========
i want every authenticated user can query only his orders which means when he prss the query button , he will get his orders only
How can i force the where clause of the query to have
form_user_name = PORTAL.WWCTX_API.GET_USER
Regards
Mohamed Hammed

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