步骤分解

  1. 查找最晚入职时间
    select max(hire_date) from employees;
  2. 查找入职时间为1的员工的所有信息
    select * from employees
     where hire_date = (select max(hire_date) from employees);
    

完整答案

select * from employees
    where hire_date = (select max(hire_date) from employees);