最长连胜是指在某个比赛或游戏中,连续获胜的最长次数。要查找最长连胜的SQL查询,可以通过以下步骤实现:
SELECT MAX(subquery.streak) AS longest_streak
FROM (
SELECT player_id, COUNT(*) AS streak
FROM (
SELECT player_id, result,
ROW_NUMBER() OVER (ORDER BY id) - ROW_NUMBER() OVER (PARTITION BY player_id, result ORDER BY id) AS grp
FROM game_results
) AS subquery
WHERE result = 1
GROUP BY player_id, grp
) AS subquery;
这个查询使用了窗口函数和子查询来计算每个玩家的连胜次数,并找到最长的连胜次数。
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