数据库——连接查询
摘要:
创建副表CREATE TABLE emp01( eid INT PRIMARY KEY AUTO_INCREMENT, ename VARCHAR(10), esex CHAR(5), did INT, CONSTRAINT fk_emp01_dept01 FOREIGN KEY(did) REFE 阅读全文
posted @ 2021-09-26 16:53 WEIrq 阅读(81) 评论(0) 推荐(0) 编辑