Required to administrate new system privileges introduced when upgrading from a
database earlier than 16.0.
By default, the UPGRADE ROLE system privilege is granted to the SYS_AUTH_SA_ROLE
role (if it still exists).
Grant this system privilege using the WITH ADMIN OPTION, WITH NO ADMIN OPTION, or
WITH ADMIN ONLY OPTION clause. If you do not specify a clause, the WITH NO ADMIN OPTION
clause is used by default.