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46 lines
948 B
HTML
46 lines
948 B
HTML
<p>Table: <code>Logs</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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| num | varchar |
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+-------------+---------+
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id is the primary key for this table.
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</pre>
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<p> </p>
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<p>Write an SQL query to find all numbers that appear at least three times consecutively.</p>
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<p>Return the result table in <strong>any order</strong>.</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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Logs table:
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+----+-----+
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| id | num |
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+----+-----+
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| 1 | 1 |
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| 2 | 1 |
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| 3 | 1 |
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| 4 | 2 |
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| 5 | 1 |
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| 6 | 2 |
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| 7 | 2 |
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+----+-----+
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<strong>Output:</strong>
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+-----------------+
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| ConsecutiveNums |
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+-----------------+
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| 1 |
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+-----------------+
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<strong>Explanation:</strong> 1 is the only number that appears consecutively for at least three times.
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</pre>
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