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add leetcode problem-cn part4

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<p>表: <code>Users</code></p>
<pre>
+----------------+---------+
| Column Name | Type |
+----------------+---------+
| user_id | int |
| name | varchar |
+----------------+---------+
user_id 是该表的主键。
该表包含用户的 ID 和名字。名字仅由小写和大写字符组成。
</pre>
<p>&nbsp;</p>
<p>编写一个 SQL 查询来修复名字,使得只有第一个字符是大写的,其余都是小写的。</p>
<p>返回按 <code>user_id</code> 排序的结果表。</p>
<p>查询结果格式示例如下。</p>
<p>&nbsp;</p>
<p><strong>示例 1</strong></p>
<pre>
<strong>输入:</strong>
Users table:
+---------+-------+
| user_id | name |
+---------+-------+
| 1 | aLice |
| 2 | bOB |
+---------+-------+
<strong>输出:</strong>
+---------+-------+
| user_id | name |
+---------+-------+
| 1 | Alice |
| 2 | Bob |
+---------+-------+</pre>