Enhanced WF_LOCAL Tables
The WF_LOCAL_USER_ROLES table includes the following new columns to support the ability to link users from sources other than the WF_LOCAL_USERS table with local roles:
The WF_LOCAL_USERS and WF_LOCAL_ROLES tables include a new EXPIRATION_DATE column of type Date, to enable you to assign an expiration date to any ad hoc users or roles you create.
Setting Up an Oracle Workflow Directory Service
