Fphoenixs
Fphoenixs
全部文章
分类
归档
标签
去牛客网
登录
/
注册
Fphoenixs的博客
全部文章
(共1篇)
题解 | #浙大不同难度题目的正确率#
SELECT b.qdiff, COUNT(if(b.result = 'right', 1, null)) / COUNT(1) AS correct_rate FROM (SELECT device_id FROM user_profile WHERE un...
2023-03-22
0
133