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56 lines
1.2 KiB
HTML
56 lines
1.2 KiB
HTML
<p>表: <code>Scores</code></p>
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<pre>
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+-------------+---------+
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| Column Name | Type |
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+-------------+---------+
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| id | int |
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| score | decimal |
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+-------------+---------+
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Id是该表的主键。
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该表的每一行都包含了一场比赛的分数。Score是一个有两位小数点的浮点值。
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</pre>
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<p> </p>
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<p>编写 SQL 查询对分数进行排序。排名按以下规则计算:</p>
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<ul>
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<li>分数应按从高到低排列。</li>
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<li>如果两个分数相等，那么两个分数的排名应该相同。</li>
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<li>在排名相同的分数后，排名数应该是下一个连续的整数。换句话说，排名之间不应该有空缺的数字。</li>
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</ul>
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<p>按 <code>score</code> 降序返回结果表。</p>
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<p>查询结果格式如下所示。</p>
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<p> </p>
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<p><strong>示例 1:</strong></p>
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<pre>
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<strong>输入:</strong>
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Scores 表:
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+----+-------+
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| id | score |
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+----+-------+
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| 1 | 3.50 |
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| 2 | 3.65 |
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| 3 | 4.00 |
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| 4 | 3.85 |
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| 5 | 4.00 |
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| 6 | 3.65 |
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+----+-------+
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<strong>输出:</strong>
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+-------+------+
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| score | rank |
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+-------+------+
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| 4.00 | 1 |
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| 4.00 | 1 |
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| 3.85 | 2 |
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| 3.65 | 3 |
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| 3.65 | 3 |
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| 3.50 | 4 |
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+-------+------+</pre>
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