题解 | #获取每个部门中当前员工薪水最高的相关信息#

SELECT d.dept_no, d.emp_no, t.salary
FROM dept_emp AS d, salaries AS s,
    (SELECT dept_emp.dept_no, MAX(salaries.salary) AS salary FROM dept_emp
    INNER JOIN salaries ON dept_emp.emp_no = salaries.emp_no
    GROUP BY dept_emp.dept_no ) AS t
WHERE d.emp_no = s.emp_no AND s.salary = t.salary AND d.dept_no = t.dept_no ORDER BY d.dept_no;

年度黄金代码