command和command_content两个表的表结构是什么,相关的sql语句没提供啊。。
请老师提供一下。
create table command(id int primary key , name varchar(16) , description varchar(16));
create table command_content (id int primary key , content varchar(2048) , command_id int, foreign key(command_id) references command(id) on delete cascade on update cascade);