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doc: update docs/mysql.md fixed #827 2bac216f98

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jaywcjlove
2024-09-17 12:37:30 +00:00
parent 71946a9f9f
commit dd82d801db
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@ -200,8 +200,9 @@
<p>将表从t1重命名为t2</p>
<pre class="language-sql"><code class="language-sql code-highlight"><span class="code-line"><span class="token keyword">ALTER</span> <span class="token keyword">TABLE</span> t1 <span class="token keyword">RENAME</span> <span class="token keyword">TO</span> t2<span class="token punctuation">;</span>
</span></code></pre>
<p>将列c1重命名为c2</p>
<pre class="language-sql"><code class="language-sql code-highlight"><span class="code-line"><span class="token keyword">ALTER</span> <span class="token keyword">TABLE</span> t1 <span class="token keyword">RENAME</span> c1 <span class="token keyword">TO</span> c2 <span class="token punctuation">;</span>
<p>将列 c1 重命名为 c2</p>
<pre class="language-sql"><code class="language-sql code-highlight"><span class="code-line"><span class="token keyword">ALTER</span> <span class="token keyword">TABLE</span> t1 CHANGE c1 c2 datatype<span class="token punctuation">;</span>
</span><span class="code-line"><span class="token keyword">ALTER</span> <span class="token keyword">TABLE</span> table_name <span class="token keyword">RENAME</span> <span class="token keyword">COLUMN</span> c1 <span class="token keyword">TO</span> c2<span class="token punctuation">;</span>
</span></code></pre>
<p>将列c1的数据类型改为datatype</p>
<pre class="language-sql"><code class="language-sql code-highlight"><span class="code-line"><span class="token keyword">ALTER</span> <span class="token keyword">TABLE</span> t1 <span class="token keyword">MODIFY</span> c1 datatype<span class="token punctuation">;</span>