针对actor表创建视图actor_name_view
针对actor表创建视图actor_name_view
https://www.nowcoder.com/practice/b9db784b5e3d488cbd30bd78fdb2a862
CREATE view actor_name_view as
select
first_name first_name_v,
last_name last_name_v
from actor
或者：
create view actor_name_view(first_name_v,last_name_v) as
select
first_name,
last_name
from actor
知识点：
1、创建视图:create view view_name as select ....（注意这里不像select后面别名可以省略as，CREATE view创建视图的as必须要有）；
2、MySQL查询语句对一些字母大小写并不敏感。
