SELECT t1.emp_no, t2.emp_no as manager_no, t1.salary as emp_salary, t2.salary as manager_salary FROM (select a.emp_no, a.dept_no, b.salary from (select emp_no,dept_no from dept_emp where emp_no not in (select emp_no from dept_manager)) a left join salaries b on a.emp_no = b.emp_no) t1 ---员工工资 LEFT...