create table Users ( type enum('t1', 't2', 't3') not null,char(30), primary key (id) id int not null auto_incrementcreated timestamp,
primary key (id),
您好,我如何对两个数据集不同的表执行两个select语句,并获得它们的结果?如何设置来自另一个表的user_id? $sql = "SELECT * FROM users_account WHERE NOT user_id= 'user_id'";
user_fullnamepasswordterms_an