create table actor( actor_id smallint(5) primary key, first_name varchar(45) not null, last_name varchar(45) not null, last_update date not null )
思路:掌握创建表语句 create
create table actor( actor_id smallint(5) primary key, first_name varchar(45) not null, last_name varchar(45) not null, last_update date not null )
思路:掌握创建表语句 create