答案
insert ignore into actor (actor_id, first_name, last_name, last_update) values ('3', 'ED', 'CHASE', '2006-02-15 12:34:33');
知识点
insert ignore into
insert ignore into actor (actor_id, first_name, last_name, last_update) values ('3', 'ED', 'CHASE', '2006-02-15 12:34:33');
insert ignore into