LeetCode（数据库）- 查询球队积分

Posted 程序员牧码

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了LeetCode（数据库）- 查询球队积分相关的知识，希望对你有一定的参考价值。

题目链接：点击打开链接

题目大意：略。

解题思路：略。

AC 代码

WITH t1 AS(SELECT host_team team_id, SUM(IF(host_goals = guest_goals, 1, IF(host_goals > guest_goals, 3, 0))) points
FROM Matches
GROUP BY host_team

UNION ALL

SELECT guest_team team_id, SUM(IF(host_goals = guest_goals, 1, IF(host_goals < guest_goals, 3, 0))) points
FROM Matches
GROUP BY guest_team)

SELECT t.team_id, team_name, SUM(IFNULL(points, 0)) num_points
FROM t1 RIGHT JOIN Teams t ON t.team_id = t1.team_id
GROUP BY team_id
ORDER BY num_points DESC, team_id

以上是关于LeetCode（数据库）- 查询球队积分的主要内容，如果未能解决你的问题，请参考以下文章