一对一关联
摘要:一对一关联1)需求:根据班级 id 查询班级信息(带老师的信息)2). 创建表和数据CREATE TABLE teacher(t_id INT PRIMARY KEY AUTO_INCREMENT,t_name VARCHAR(20));CREATE TABLE class(c_id INT PR...
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posted @ 2015-01-28 15:41
posted @ 2015-01-28 15:41
posted @ 2014-12-17 21:57
posted @ 2014-12-17 13:29
posted @ 2014-12-17 12:02