select * from employees
where hire_date =
(select distinct hire_date from employees
order by hire_date desc
limit 1 offset 2);
SELECT * FROM employees ORDER BY hire_date DESC LIMIT 2,1;
所以说真的很奇怪,严重怀疑这在线编程测试的时候有问题,命名答案写得很对,结果一提交就有问题,因为这个不稳定,这让人做题分分钟都崩溃,都做不下去题了!!!