题解 | #获取所有员工当前的manager#
获取员工其当前的薪水比其manager当前薪水还高的相关信息
http://www.nowcoder.com/practice/f858d74a030e48da8e0f69e21be63bef
思路清晰,多表连接查询
select a.emp_no,b.emp_no manager_no,c.salary emp_salary,
b.salary manager_salary from dept_emp a,(select dm.emp_no,dm.dept_no,s.salary from dept_manager dm, 经理的薪水与emP——no
salaries s where dm.emp_no=s.emp_no)b,
salaries c
where a.emp_no not in(select emp_no from dept_manager)
and a.emp_no=c.emp_no
and c.salary>b.salary
and a.dept_no=b.dept_no