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 d.dept_no ,dept_name ,title ,count(d.emp_no) count from departments p join dept_emp d on p.dept_no=d.dept_no join titles t on d.emp_no=t.emp_no where d.to_date='9999-01-01' and t.to_date='9999-01-01' group by d.dept_no,title order by d.dept_no,title
