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56 lines
1.4 KiB
HTML
56 lines
1.4 KiB
HTML
<p>Table: <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 is the primary key for this table.
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Each row of this table contains the score of a game. Score is a floating point value with two decimal places.
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</pre>
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<p> </p>
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<p>Write an SQL query to rank the scores. The ranking should be calculated according to the following rules:</p>
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<ul>
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<li>The scores should be ranked from the highest to the lowest.</li>
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<li>If there is a tie between two scores, both should have the same ranking.</li>
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<li>After a tie, the next ranking number should be the next consecutive integer value. In other words, there should be no holes between ranks.</li>
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</ul>
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<p>Return the result table ordered by <code>score</code> in descending order.</p>
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<p>The query result format is in the following example.</p>
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<p> </p>
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<p><strong>Example 1:</strong></p>
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<pre>
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<strong>Input:</strong>
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Scores table:
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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>Output:</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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+-------+------+
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</pre>
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