摘要: EXPLAIN SELECT te.*, tl.*FROM t_employee teLEFT JOIN t_employee_log tl ON te.EMPLOYEE_ID = tl.EMPLOYEE_ID; alter table t_employee_log add foreign key 阅读全文
posted @ 2018-08-14 17:15 SpringMVCMaven 阅读(242) 评论(0) 推荐(0) 编辑