Only the zone creator can add guests to a zone. PUBLIC cannot be a zone guest. To add one or more zone guests, use a syntax statement in the form of one of the following statements:
GRANT ZONE zone_name_list TO user_name_list ; GRANT ZONE zone_name_list TO role_name_list ; GRANT ZONE zone_name_list TO user_name_list, role_name_list ;
The user or role cannot be a member of any other zone. Zone creators cannot add themselves as zone guests.
Zone guests have no privileges on zone objects until a zone user grants them access privileges.