题解 | 查找所有员工的last_name和first_name以及对应的dept_name
查找所有员工的last_name和first_name以及对应的dept_name
https://www.nowcoder.com/practice/5a7975fabe1146329cee4f670c27ad55
select e.last_name,e.first_name,dp.dept_name from employees e left join (select d.emp_no,n.dept_name from dept_emp d,departments n where d.dept_no=n.dept_no) dp on e.emp_no=dp.emp_no;