牛客907689258号

分类

/ 注册

全部文章（共32篇）

题解 | 未完成试卷数大于1的有效用户

WITH t AS ( SELECT r.uid, CONCAT(DATE(r.start_time), ':', i.tag) AS detail_item, CASE WHEN r.submit_time IS NULL THEN 1 EL...

2026-01-13

0 48

题解 | 牛客直播各科目出勤率

WITH merged AS ( SELECT b.user_id, c.course_name, b.course_id, b.if_vw, b.if_fav, b.if_sign, ...

2026-01-12

0 44