题解 | #获取所有非manager的员工emp_no#
获取所有非manager的员工emp_no
https://www.nowcoder.com/practice/32c53d06443346f4a2f2ca733c19660c
# 首先使用左连接，如果
select
a.emp_no
from
employees as a
left join
dept_manager as b
on
a.emp_no = b.emp_no
where
b.dept_no is null;
查看15道真题和解析