答案
//创建视图 create view actor_name_view as select first_name first_name_v, last_name last_name_v from actor; //使用视图 select * from actor_name_view;
知识点
学习链接:https://www.cnblogs.com/xielong/p/8584736.html
(视图的作用,怎么写视图)
//创建视图 create view actor_name_view as select first_name first_name_v, last_name last_name_v from actor; //使用视图 select * from actor_name_view;
学习链接:https://www.cnblogs.com/xielong/p/8584736.html
(视图的作用,怎么写视图)