CREATE TABLE EVENTS (service_id VARCHAR(255), event_details VARCHAR(255)); CREATE TABLE services (service_type_code VARCHAR(255), service_id VARCHAR(255))
Which services type had both successful and failure event details?
    
SQL: SELECT T1.service_type_code FROM services AS T1 JOIN EVENTS AS T2 ON T1.service_id = T2.service_id WHERE T2.event_details = 'Success' INTERSECT SELECT T1.service_type_code FROM services AS T1 JOIN EVENTS AS T2 ON T1.service_id = T2.service_id WHERE T2.event_details = 'Fail'