Use the DROP PROFILE statement to remove a profile from the database. You can drop any profile except the DEFAULT profile.
Specify the name of the profile to be dropped.
Specify CASCADE to deassign the profile from any users to whom it is assigned. Oracle Database automatically assigns the DEFAULT profile to such users. You must specify this clause to drop a profile that is currently assigned to users.
Dropping a Profile: Example The following statement drops the profile app_user, which was created in "Creating a Profile: Example". Oracle Database drops the profile app_user and assigns the DEFAULT profile to any users currently assigned the app_user profile:
DROP PROFILE app_user CASCADE;