方法)创建视图
CREATE VIEW actor_name_view AS SELECT first_name AS first_name_v, last_name AS last_name_v FROM actor;会报错,但方法应该是对的
21/5/13 现系统已修复,不会报错了
CREATE VIEW actor_name_view AS SELECT first_name AS first_name_v, last_name AS last_name_v FROM actor;会报错,但方法应该是对的