执行我的代码不会导致错误,也不会在此服务器上创建预期的键: id int not null auto_increment primary key,columnName int not null, foreign key (columnName) references table1(id) on delete cascade编
data.staff AS staffMysql在mysql上能实现同样的结果吗?+----+-------------+------------+------------+------+----------------------------------+------------------------