How can I test what the current setting for the IDLE_TIME
setting is within my oracle
database?
If you're talking about IDLE_TIME in the user profiles, then it depends on the username.
select dbms_metadata.get_ddl('PROFILE', u.profile)
from dba_users u
where u.username = :v_username;
You can use the ALTER PROFILE statement to change it if you have the privileges.