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对分数排序 参考了网上的答案 而且如果不Order by 有一个BUG就是 如果表为空则什么都不输出包括null才是正确的。
# Write your MySQL query statement below select s.Score, count(rank.Score) as Rank from Scores s,( select distinct Score from Scores ) rank where s.Score <= rank.Score group by s.Id order by s.Score desc;
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原文地址:http://www.cnblogs.com/wxisme/p/4443051.html