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存量题库数据更新

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2023-12-09 18:42:21 +08:00
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leetcode-cn/problem (English)/变更性别(English) [swap-salary].html
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@@ -9,21 +9,21 @@
| sex | ENUM |
| salary | int |
+-------------+----------+
id is the primary key for this table.
The sex column is ENUM value of type ('m', 'f').
id is the primary key (column with unique values) for this table.
The sex column is ENUM (category) value of type ('m', 'f').
The table contains information about an employee.
</pre>
<p>&nbsp;</p>
<p>Write an SQL query to swap all <code>&#39;f&#39;</code> and <code>&#39;m&#39;</code> values (i.e., change all <code>&#39;f&#39;</code> values to <code>&#39;m&#39;</code> and vice versa) with a <strong>single update statement</strong> and no intermediate temporary tables.</p>
<p>Write a solution to swap all <code>&#39;f&#39;</code> and <code>&#39;m&#39;</code> values (i.e., change all <code>&#39;f&#39;</code> values to <code>&#39;m&#39;</code> and vice versa) with a <strong>single update statement</strong> and no intermediate temporary tables.</p>
<p>Note that you must write a single update statement, <strong>do not</strong> write any select statement for this problem.</p>
<p>The query result format is in the following example.</p>
<p>The result format is in the following example.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong>