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
select emp_no , (select emp_no from dept_manager dm where dm.dept_no = de.dept_no) as manager
from dept_emp de where not exists (select 1 from dept_manager dep where
from dept_emp de where not exists (select 1 from dept_manager dep where
dep.emp_no = de.emp_no)
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