LeetCode（数据库）- 没有广告的剧集

Posted 2021-12-25 程序员牧码

题目链接：点击打开链接

题目大意：略。

解题思路：略。

AC 代码

SELECT session_id
FROM Playback p LEFT JOIN Ads a ON timestamp BETWEEN start_time AND end_time AND p.customer_id = a.customer_id
WHERE ad_id IS NULL