题解 | #汇总各个部门当前员工的title类型的分配数目#
汇总各个部门当前员工的title类型的分配数目
https://www.nowcoder.com/practice/4bcb6a7d3e39423291d2f7bdbbff87f8
select dept_no,dept_name,title,count(1) from titles left join dept_emp using(emp_no) left join departments using(dept_no) group by dept_no,title order by dept_no,title
