虽然接触过SQL,但是接触的时间并不算太长,现在下午在和大家一起学oracle从SQL开始吧。 一个题目。我竟然能理解错 找到部门平均工资大于Diana所在部门最大工资的部门名字 SELECT department_name FROM departments WHERE department_id in(SELECT department_id FROM employees GROUP BY department_id HAVING AVG(salary) > (SELECT MAX(salary) FROM employees WHERE department_id = (SELECT department_id FROM employees WHERE first_name like 'Diana') ) )