刘油果不油

分类

/ 注册

全部文章（共2篇）

题解 | 21年8月份练题总数

select count(distinct device_id) as did_cnt , count(question_id) as question_cnt from question_practice_detail where month(date)=8;

2025-04-16

0 12

题解 | 找出每个学校GPA最低的同学

with t as (select*, rank()over( partition by university order by gpa ) as gpa_m from user_profile) select device_id,un...

2025-04-16

0 17