题解 | #获取当前薪水第二多的员工的emp_no以及其对应的薪水salary#

#1.先将薪水最高的找出来
#select max(salary) from `salaries`;
#2.找出薪水第二高的
#select max(salary) from `salaries` where salary<(select max(salary) from `salaries`);
#3.联表查出薪水等于这个第二高的员工
select e.emp_no,s.salary,e.last_name,e.first_name from `employees` e join `salaries` s
on e.emp_no = s.emp_no
where s.salary = (select max(salary) from `salaries` where salary<(select max(salary) from `salaries`));