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 de.emp_no ,a.manager from( select dept_no ,emp_no as manager from dept_manager )a right join dept_emp de on a.dept_no=de.dept_no where a.manager <> de.emp_no
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