current_schema cannot be changed through Oracle Express Web Interface

Question

Hi folks

I was trying to change the current_scheme of user A (App_User) to user B (Schema_Owner) through Oracle Express Web Interface but failed.

I was following Tim Hall's advice: http://www.oracle-base.com/articles/misc/SchemaOwnersAndApplicationUsers.php#current_schema_approach

Logon as Appl_User through:

1. Oracle Express Interface, current_schema = "Appl_User"
2. Oracle Express SQL Command, current_schema = "Schema_Owner"
3. Oracle SQL Developer, current_schema = "Schema_Owner"