题解 | #获取所有员工当前的manager#
获取所有员工当前的manager
http://www.nowcoder.com/practice/e50d92b8673a440ebdf3a517b5b37d62
避免返回manager的行，要用a.emp_no != b.emp_no select a.emp_no, b.emp_no manager from dept_emp a, dept_manager b where a.dept_no = b.dept_no and a.emp_no != b.emp_no;
