题解 | #获取所有员工当前的manager#
获取所有员工当前的manager
https://www.nowcoder.com/practice/e50d92b8673a440ebdf3a517b5b37d62
select e.emp_no empno ,m.emp_no manager from dept_emp e left outer join dept_manager m on e.dept_no=m.dept_no where e.emp_no not in (select emp_no from dept_manager)
思路:
1.子查询+自连接