{"id":1095445,"date":"2025-01-08T14:51:12","date_gmt":"2025-01-08T06:51:12","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1095445.html"},"modified":"2025-01-08T14:51:14","modified_gmt":"2025-01-08T06:51:14","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8python%e4%b8%ad%e6%98%be%e7%a4%ba%e6%95%b0%e6%8d%ae%e5%ba%93-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1095445.html","title":{"rendered":"\u5982\u4f55\u5728python\u4e2d\u663e\u793a\u6570\u636e\u5e93"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24211112\/b74d7874-f71d-4416-90c2-a30cd2152b16.webp\" alt=\"\u5982\u4f55\u5728python\u4e2d\u663e\u793a\u6570\u636e\u5e93\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\uff0c\u663e\u793a\u6570\u636e\u5e93\u4e2d\u7684\u5185\u5bb9\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\uff0c<\/strong>\u5982\u4f7f\u7528SQLite\u3001MySQL\u3001PostgreSQL\u7b49\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u3002<strong>\u5177\u4f53\u6b65\u9aa4\u5305\u62ec\u8fde\u63a5\u6570\u636e\u5e93\u3001\u6267\u884c\u67e5\u8be2\u3001\u83b7\u53d6\u7ed3\u679c\u3001\u5e76\u4ee5\u9002\u5f53\u7684\u65b9\u5f0f\u663e\u793a\u6570\u636e\u3002<\/strong>\u4f8b\u5982\uff0c\u4f7f\u7528SQLite\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n<ol>\n<li><strong>\u8fde\u63a5\u5230\u6570\u636e\u5e93<\/strong>\uff1a\u4f7f\u7528<code>sqlite3<\/code>\u6a21\u5757\u8fde\u63a5\u5230SQLite\u6570\u636e\u5e93\u3002<\/li>\n<li><strong>\u6267\u884cSQL\u67e5\u8be2<\/strong>\uff1a\u4f7f\u7528<code>cursor<\/code>\u5bf9\u8c61\u6267\u884cSQL\u67e5\u8be2\u8bed\u53e5\u3002<\/li>\n<li><strong>\u83b7\u53d6\u67e5\u8be2\u7ed3\u679c<\/strong>\uff1a\u4f7f\u7528<code>fetchall()<\/code>\u65b9\u6cd5\u83b7\u53d6\u7ed3\u679c\u96c6\u3002<\/li>\n<li><strong>\u663e\u793a\u6570\u636e<\/strong>\uff1a\u5faa\u73af\u904d\u5386\u7ed3\u679c\u96c6\u5e76\u8f93\u51fa\u6570\u636e\u3002<\/li>\n<\/ol>\n<p><h3>\u4e00\u3001\u8fde\u63a5\u5230\u6570\u636e\u5e93<\/h3>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u8fde\u63a5\u5230\u6570\u636e\u5e93\u3002\u4ee5SQLite\u4e3a\u4f8b\uff0cPython\u63d0\u4f9b\u4e86\u5185\u7f6e\u7684<code>sqlite3<\/code>\u6a21\u5757\u6765\u8fde\u63a5\u548c\u64cd\u4f5cSQLite\u6570\u636e\u5e93\u3002\u4ee5\u4e0b\u662f\u8fde\u63a5\u5230SQLite\u6570\u636e\u5e93\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import sqlite3<\/p>\n<h2><strong>\u8fde\u63a5\u5230SQLite\u6570\u636e\u5e93\uff08\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4f1a\u81ea\u52a8\u521b\u5efa\uff09<\/strong><\/h2>\n<p>conn = sqlite3.connect(&#39;example.db&#39;)<\/p>\n<p>print(&quot;\u6570\u636e\u5e93\u8fde\u63a5\u6210\u529f&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e8c\u3001\u6267\u884cSQL\u67e5\u8be2<\/h3>\n<\/p>\n<p><p>\u8fde\u63a5\u6210\u529f\u540e\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a<code>cursor<\/code>\u5bf9\u8c61\uff0c\u901a\u8fc7\u8be5\u5bf9\u8c61\u6765\u6267\u884cSQL\u67e5\u8be2\u3002\u4ee5\u4e0b\u662f\u6267\u884cSQL\u67e5\u8be2\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u521b\u5efa\u4e00\u4e2acursor\u5bf9\u8c61<\/p>\n<p>cursor = conn.cursor()<\/p>\n<h2><strong>\u6267\u884cSQL\u67e5\u8be2<\/strong><\/h2>\n<p>cursor.execute(&quot;SELECT * FROM users&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u83b7\u53d6\u67e5\u8be2\u7ed3\u679c<\/h3>\n<\/p>\n<p><p>\u6267\u884c\u67e5\u8be2\u540e\uff0c\u6211\u4eec\u9700\u8981\u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\u3002\u53ef\u4ee5\u4f7f\u7528<code>fetchall()<\/code>\u65b9\u6cd5\u83b7\u53d6\u6240\u6709\u7ed3\u679c\uff0c\u6216\u4f7f\u7528<code>fetchone()<\/code>\u65b9\u6cd5\u83b7\u53d6\u5355\u6761\u7ed3\u679c\u3002\u4ee5\u4e0b\u662f\u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u83b7\u53d6\u6240\u6709\u67e5\u8be2\u7ed3\u679c<\/p>\n<p>rows = cursor.fetchall()<\/p>\n<h2><strong>\u8f93\u51fa\u67e5\u8be2\u7ed3\u679c<\/strong><\/h2>\n<p>for row in rows:<\/p>\n<p>    print(row)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u56db\u3001\u663e\u793a\u6570\u636e<\/h3>\n<\/p>\n<p><p>\u5728\u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4ee5\u9002\u5f53\u7684\u65b9\u5f0f\u663e\u793a\u6570\u636e\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u7ed3\u679c\u683c\u5f0f\u5316\u8f93\u51fa\uff0c\u6216\u8005\u5c06\u6570\u636e\u8f6c\u6362\u4e3aDataFrame\u540e\u663e\u793a\u3002\u4ee5\u4e0b\u662f\u663e\u793a\u6570\u636e\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5bfc\u5165pandas\u5e93<\/p>\n<p>import pandas as pd<\/p>\n<h2><strong>\u5c06\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aDataFrame<\/strong><\/h2>\n<p>df = pd.DataFrame(rows, columns=[desc[0] for desc in cursor.description])<\/p>\n<h2><strong>\u663e\u793a\u6570\u636e<\/strong><\/h2>\n<p>print(df)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e94\u3001\u5b8c\u6574\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u5b8c\u6574\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import sqlite3<\/p>\n<p>import pandas as pd<\/p>\n<h2><strong>\u8fde\u63a5\u5230SQLite\u6570\u636e\u5e93<\/strong><\/h2>\n<p>conn = sqlite3.connect(&#39;example.db&#39;)<\/p>\n<p>print(&quot;\u6570\u636e\u5e93\u8fde\u63a5\u6210\u529f&quot;)<\/p>\n<h2><strong>\u521b\u5efa\u4e00\u4e2acursor\u5bf9\u8c61<\/strong><\/h2>\n<p>cursor = conn.cursor()<\/p>\n<h2><strong>\u6267\u884cSQL\u67e5\u8be2<\/strong><\/h2>\n<p>cursor.execute(&quot;SELECT * FROM users&quot;)<\/p>\n<h2><strong>\u83b7\u53d6\u6240\u6709\u67e5\u8be2\u7ed3\u679c<\/strong><\/h2>\n<p>rows = cursor.fetchall()<\/p>\n<h2><strong>\u5c06\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aDataFrame<\/strong><\/h2>\n<p>df = pd.DataFrame(rows, columns=[desc[0] for desc in cursor.description])<\/p>\n<h2><strong>\u663e\u793a\u6570\u636e<\/strong><\/h2>\n<p>print(df)<\/p>\n<h2><strong>\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5<\/strong><\/h2>\n<p>conn.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5728Python\u4e2d\u663e\u793aSQLite\u6570\u636e\u5e93\u4e2d\u7684\u5185\u5bb9\u3002\u5bf9\u4e8e\u5176\u4ed6\u6570\u636e\u5e93\uff0c\u5982MySQL\u3001PostgreSQL\u7b49\uff0c\u6b65\u9aa4\u7c7b\u4f3c\uff0c\u53ea\u9700\u66f4\u6362\u76f8\u5e94\u7684\u6570\u636e\u5e93\u8fde\u63a5\u6a21\u5757\u548c\u8fde\u63a5\u5b57\u7b26\u4e32\u5373\u53ef\u3002<\/p>\n<\/p>\n<p><h3>\u516d\u3001\u4f7f\u7528MySQL\u6570\u636e\u5e93<\/h3>\n<\/p>\n<p><p>\u5982\u679c\u9700\u8981\u4f7f\u7528MySQL\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528<code>mysql-connector-python<\/code>\u5e93\u6765\u8fde\u63a5\u548c\u64cd\u4f5cMySQL\u6570\u636e\u5e93\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528MySQL\u6570\u636e\u5e93\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><h4>\u5b89\u88c5MySQL\u8fde\u63a5\u5668<\/h4>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u786e\u4fdd\u5b89\u88c5\u4e86<code>mysql-connector-python<\/code>\u5e93\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install mysql-connector-python<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u8fde\u63a5\u5230MySQL\u6570\u636e\u5e93<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\">import mysql.connector<\/p>\n<h2><strong>\u8fde\u63a5\u5230MySQL\u6570\u636e\u5e93<\/strong><\/h2>\n<p>conn = mysql.connector.connect(<\/p>\n<p>    host=&quot;localhost&quot;,<\/p>\n<p>    user=&quot;yourusername&quot;,<\/p>\n<p>    password=&quot;yourpassword&quot;,<\/p>\n<p>    database=&quot;yourdatabase&quot;<\/p>\n<p>)<\/p>\n<p>print(&quot;\u6570\u636e\u5e93\u8fde\u63a5\u6210\u529f&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u6267\u884cSQL\u67e5\u8be2\u5e76\u663e\u793a\u6570\u636e<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\"># \u521b\u5efa\u4e00\u4e2acursor\u5bf9\u8c61<\/p>\n<p>cursor = conn.cursor()<\/p>\n<h2><strong>\u6267\u884cSQL\u67e5\u8be2<\/strong><\/h2>\n<p>cursor.execute(&quot;SELECT * FROM users&quot;)<\/p>\n<h2><strong>\u83b7\u53d6\u6240\u6709\u67e5\u8be2\u7ed3\u679c<\/strong><\/h2>\n<p>rows = cursor.fetchall()<\/p>\n<h2><strong>\u5c06\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aDataFrame<\/strong><\/h2>\n<p>df = pd.DataFrame(rows, columns=[desc[0] for desc in cursor.description])<\/p>\n<h2><strong>\u663e\u793a\u6570\u636e<\/strong><\/h2>\n<p>print(df)<\/p>\n<h2><strong>\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5<\/strong><\/h2>\n<p>conn.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e03\u3001\u4f7f\u7528PostgreSQL\u6570\u636e\u5e93<\/h3>\n<\/p>\n<p><p>\u5982\u679c\u9700\u8981\u4f7f\u7528PostgreSQL\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528<code>psycopg2<\/code>\u5e93\u6765\u8fde\u63a5\u548c\u64cd\u4f5cPostgreSQL\u6570\u636e\u5e93\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PostgreSQL\u6570\u636e\u5e93\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><h4>\u5b89\u88c5PostgreSQL\u8fde\u63a5\u5668<\/h4>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u786e\u4fdd\u5b89\u88c5\u4e86<code>psycopg2<\/code>\u5e93\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install psycopg2<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u8fde\u63a5\u5230PostgreSQL\u6570\u636e\u5e93<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\">import psycopg2<\/p>\n<h2><strong>\u8fde\u63a5\u5230PostgreSQL\u6570\u636e\u5e93<\/strong><\/h2>\n<p>conn = psycopg2.connect(<\/p>\n<p>    host=&quot;localhost&quot;,<\/p>\n<p>    user=&quot;yourusername&quot;,<\/p>\n<p>    password=&quot;yourpassword&quot;,<\/p>\n<p>    database=&quot;yourdatabase&quot;<\/p>\n<p>)<\/p>\n<p>print(&quot;\u6570\u636e\u5e93\u8fde\u63a5\u6210\u529f&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u6267\u884cSQL\u67e5\u8be2\u5e76\u663e\u793a\u6570\u636e<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\"># \u521b\u5efa\u4e00\u4e2acursor\u5bf9\u8c61<\/p>\n<p>cursor = conn.cursor()<\/p>\n<h2><strong>\u6267\u884cSQL\u67e5\u8be2<\/strong><\/h2>\n<p>cursor.execute(&quot;SELECT * FROM users&quot;)<\/p>\n<h2><strong>\u83b7\u53d6\u6240\u6709\u67e5\u8be2\u7ed3\u679c<\/strong><\/h2>\n<p>rows = cursor.fetchall()<\/p>\n<h2><strong>\u5c06\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aDataFrame<\/strong><\/h2>\n<p>df = pd.DataFrame(rows, columns=[desc[0] for desc in cursor.description])<\/p>\n<h2><strong>\u663e\u793a\u6570\u636e<\/strong><\/h2>\n<p>print(df)<\/p>\n<h2><strong>\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5<\/strong><\/h2>\n<p>conn.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u516b\u3001\u4f7f\u7528SQLAlchemy\u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c<\/h3>\n<\/p>\n<p><p>SQLAlchemy\u662f\u4e00\u4e2aPython SQL\u5de5\u5177\u5305\u548cORM\uff08\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff09\u5e93\uff0c\u652f\u6301\u591a\u79cd\u6570\u636e\u5e93\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SQLAlchemy\u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><h4>\u5b89\u88c5SQLAlchemy<\/h4>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u786e\u4fdd\u5b89\u88c5\u4e86<code>SQLAlchemy<\/code>\u5e93\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install sqlalchemy<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u8fde\u63a5\u5230\u6570\u636e\u5e93\u5e76\u6267\u884c\u67e5\u8be2<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\">from sqlalchemy import create_engine<\/p>\n<p>import pandas as pd<\/p>\n<h2><strong>\u521b\u5efa\u6570\u636e\u5e93\u5f15\u64ce<\/strong><\/h2>\n<p>engine = create_engine(&#39;sqlite:\/\/\/example.db&#39;)<\/p>\n<h2><strong>\u6267\u884cSQL\u67e5\u8be2\u5e76\u83b7\u53d6\u7ed3\u679c<\/strong><\/h2>\n<p>with engine.connect() as conn:<\/p>\n<p>    result = conn.execute(&quot;SELECT * FROM users&quot;)<\/p>\n<p>    rows = result.fetchall()<\/p>\n<h2><strong>\u5c06\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aDataFrame<\/strong><\/h2>\n<p>df = pd.DataFrame(rows, columns=result.keys())<\/p>\n<h2><strong>\u663e\u793a\u6570\u636e<\/strong><\/h2>\n<p>print(df)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Python\u4e2d\u663e\u793a\u4e0d\u540c\u7c7b\u578b\u6570\u636e\u5e93\u4e2d\u7684\u5185\u5bb9\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5e93\u548c\u8fde\u63a5\u65b9\u5f0f\uff0c\u53ef\u4ee5\u66f4\u52a0\u7075\u6d3b\u548c\u9ad8\u6548\u5730\u8fdb\u884c\u6570\u636e\u64cd\u4f5c\u548c\u663e\u793a\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff1f<\/strong><br \/>\u8fde\u63a5\u5230\u6570\u636e\u5e93\u901a\u5e38\u9700\u8981\u4f7f\u7528\u76f8\u5e94\u7684\u6570\u636e\u5e93\u9a71\u52a8\u7a0b\u5e8f\u3002\u9488\u5bf9\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\u5e93\uff08\u5982MySQL\u3001PostgreSQL\u3001SQLite\u7b49\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u5e93\u3002\u4ee5MySQL\u4e3a\u4f8b\uff0c\u53ef\u4ee5\u4f7f\u7528<code>mysql-connector-python<\/code>\u5e93\u3002\u901a\u8fc7\u5b89\u88c5\u8be5\u5e93\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff1a  <\/p>\n<pre><code class=\"language-python\">import mysql.connector\n\nconnection = mysql.connector.connect(\n    host=&#39;localhost&#39;,\n    user=&#39;your_username&#39;,\n    password=&#39;your_password&#39;,\n    database=&#39;your_database&#39;\n)\n<\/code><\/pre>\n<p>\u786e\u4fdd\u5728\u8fde\u63a5\u65f6\u8f93\u5165\u6b63\u786e\u7684\u51ed\u636e\uff0c\u4ee5\u4fbf\u987a\u5229\u8bbf\u95ee\u6570\u636e\u5e93\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u5982\u4f55\u6267\u884cSQL\u67e5\u8be2\u5e76\u663e\u793a\u7ed3\u679c\uff1f<\/strong><br \/>\u4f7f\u7528Python\u4e0e\u6570\u636e\u5e93\u4ea4\u4e92\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u6e38\u6807\u5bf9\u8c61\u6267\u884cSQL\u67e5\u8be2\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4e0a\u9762\u7684\u8fde\u63a5\u5bf9\u8c61\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u6e38\u6807\u5e76\u6267\u884c\u67e5\u8be2\uff1a  <\/p>\n<pre><code class=\"language-python\">cursor = connection.cursor()\ncursor.execute(&quot;SELECT * FROM your_table&quot;)\nresults = cursor.fetchall()\n\nfor row in results:\n    print(row)\n<\/code><\/pre>\n<p>\u6b64\u4ee3\u7801\u5c06\u67e5\u8be2\u6307\u5b9a\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\uff0c\u5e76\u9010\u884c\u6253\u5370\u7ed3\u679c\u3002\u6839\u636e\u9700\u8981\uff0c\u53ef\u4ee5\u8c03\u6574SQL\u67e5\u8be2\u4ee5\u83b7\u53d6\u7279\u5b9a\u6570\u636e\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u5904\u7406\u6570\u636e\u5e93\u4e2d\u7684\u5f02\u5e38\uff1f<\/strong><br \/>\u5904\u7406\u6570\u636e\u5e93\u64cd\u4f5c\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5404\u79cd\u5f02\u5e38\u60c5\u51b5\uff0c\u4f8b\u5982\u8fde\u63a5\u5931\u8d25\u6216SQL\u8bed\u6cd5\u9519\u8bef\u3002\u4f7f\u7528<code>try-except<\/code>\u8bed\u53e5\u53ef\u4ee5\u6709\u6548\u6355\u83b7\u8fd9\u4e9b\u5f02\u5e38\u5e76\u505a\u51fa\u76f8\u5e94\u5904\u7406\u3002\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">try:\n    connection = mysql.connector.connect(\n        host=&#39;localhost&#39;,\n        user=&#39;your_username&#39;,\n        password=&#39;your_password&#39;,\n        database=&#39;your_database&#39;\n    )\n    cursor = connection.cursor()\n    cursor.execute(&quot;SELECT * FROM your_table&quot;)\nexcept mysql.connector.Error as err:\n    print(f&quot;Error: {err}&quot;)\nfinally:\n    if connection.is_connected():\n        cursor.close()\n        connection.close()\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u786e\u4fdd\u5728\u53d1\u751f\u9519\u8bef\u65f6\u80fd\u591f\u6355\u83b7\u5e76\u6253\u5370\u9519\u8bef\u4fe1\u606f\uff0c\u540c\u65f6\u5728\u64cd\u4f5c\u5b8c\u6210\u540e\u5173\u95ed\u8fde\u63a5\uff0c\u4ee5\u7ef4\u62a4\u8d44\u6e90\u7684\u6709\u6548\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u663e\u793a\u6570\u636e\u5e93\u4e2d\u7684\u5185\u5bb9\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\uff0c\u5982\u4f7f\u7528SQLite\u3001MySQL\u3001PostgreSQ [&hellip;]","protected":false},"author":3,"featured_media":1095451,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1095445"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1095445"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1095445\/revisions"}],"predecessor-version":[{"id":1095453,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1095445\/revisions\/1095453"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1095451"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1095445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1095445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1095445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}