获取所有部门中员工薪水最高的相关信息,给出dept_no, emp_no以及其对应的salary,按照部门编号升序排列 SELECT a.dept_no, a.emp_no, a.salary FROM( SELECT de.dept_no,de.emp_no,s.salary, rank() over(PARTITION BY de.dept_no ORDER BY s.salary DESC) ranking FROM dept_emp AS de JOIN salaries AS s ON de.emp_no=s.emp_no )a WHERE a.ranking...