d.id, d.code, d.name, d.short_name, d.manager_id, d.parent_id, d.parent_ids, d.type, d.sort, d.update_time, d.create_time SELECT count(1) FROM t_department WHERE parent_id = #{departmentId} SELECT , e.actual_name as managerName, pd.`name` as parentName FROM t_department d left join t_employee e on d.manager_id= e.id left join t_department pd on d.parent_id = pd.id order by sort asc SELECT FROM t_department d where d.parent_id = #{departmentId} order by sort desc SELECT FROM t_department d where d.code = #{code} order by sort desc