题解 | #统计各个部门的工资记录数#
统计各个部门的工资记录数
https://www.nowcoder.com/practice/6a62b6c0a7324350a6d9959fa7c21db3
select d.dept_no,dp.dept_name,count(d.dept_no) sum from salaries s left join dept_emp d on s.emp_no = d.emp_no join departments dp on d.dept_no=dp.dept_no group by dept_no order by d.dept_no asc
投递牛客等公司7个岗位