摘要: select t1.*, t2.sfrom emp_hiloo t1 join (select deptno, avg(salary) s from emp_hiloo group by deptno) t2 on t1.deptno=t2.deptnowhere t1.salary>t2.ss... 阅读全文
posted @ 2014-02-14 16:08 前行者2011 阅读(143) 评论(0) 推荐(0) 编辑