{"id":140,"date":"2024-12-09T23:56:01","date_gmt":"2024-12-09T15:56:01","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=140"},"modified":"2024-12-09T23:56:01","modified_gmt":"2024-12-09T15:56:01","slug":"sql%e4%b8%8epython%ef%bc%9a%e5%93%aa%e7%a7%8d%e8%af%ad%e8%a8%80%e6%9b%b4%e6%98%93%e8%87%aa%e5%ad%a6%ef%bc%9f%e5%ad%a6%e4%b9%a0%e9%9a%be%e6%98%93%e5%85%a8%e6%96%b9%e4%bd%8d%e5%af%b9%e6%af%94","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2024\/12\/09\/sql%e4%b8%8epython%ef%bc%9a%e5%93%aa%e7%a7%8d%e8%af%ad%e8%a8%80%e6%9b%b4%e6%98%93%e8%87%aa%e5%ad%a6%ef%bc%9f%e5%ad%a6%e4%b9%a0%e9%9a%be%e6%98%93%e5%85%a8%e6%96%b9%e4%bd%8d%e5%af%b9%e6%af%94\/","title":{"rendered":"SQL\u4e0ePython\uff1a\u54ea\u79cd\u8bed\u8a00\u66f4\u6613\u81ea\u5b66\uff1f\u5b66\u4e60\u96be\u6613\u5168\u65b9\u4f4d\u5bf9\u6bd4"},"content":{"rendered":"\n
\n
\n

SQL \u548c Python \u662f\u4e24\u79cd\u7528\u9014\u4e0d\u540c\u7684\u8bed\u8a00\uff0c\u5b66\u4e60\u96be\u5ea6\u4e0e\u7528\u9014\u606f\u606f\u76f8\u5173\u3002\u4ee5\u4e0b\u4ece\u8bed\u8a00\u7279\u6027\u3001\u5b66\u4e60\u96be\u5ea6\u3001\u5e94\u7528\u573a\u666f\u3001\u751f\u6001\u7cfb\u7edf\u7b49\u591a\u4e2a\u65b9\u9762\u8fdb\u884c\u8be6\u7ec6\u5bf9\u6bd4\uff0c\u5e2e\u52a9\u4f60\u9009\u62e9\u5408\u9002\u7684\u5b66\u4e60\u8def\u5f84\u3002<\/h3>\n<\/blockquote>\n<\/blockquote>\n\n\n\n
\n\n\n\n

1. \u4ec0\u4e48\u662f SQL \u548c Python\uff1f<\/strong><\/h2>\n\n\n\n

SQL\uff08Structured Query Language\uff09<\/strong><\/h3>\n\n\n\n
    \n
  • \u7528\u9014<\/strong>\uff1a\u4e3b\u8981\u7528\u4e8e\u4e0e\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff08\u5982 MySQL\u3001PostgreSQL\uff09\u4ea4\u4e92\uff0c\u6267\u884c\u6570\u636e\u67e5\u8be2\u3001\u63d2\u5165\u3001\u66f4\u65b0\u548c\u5220\u9664\u7b49\u64cd\u4f5c\u3002<\/li>\n\n\n\n
  • \u8bed\u8a00\u7279\u70b9<\/strong>\uff1a<\/li>\n\n\n\n
  • \u58f0\u660e\u5f0f\u8bed\u8a00\uff1a\u53ea\u9700\u58f0\u660e\u201c\u8981\u4ec0\u4e48\u6570\u636e\u201d\uff0c\u65e0\u9700\u5173\u5fc3\u5982\u4f55\u5b9e\u73b0\u3002<\/li>\n\n\n\n
  • \u4e13\u6ce8\u4e8e\u6570\u636e\uff1a\u4ee5\u6570\u636e\u64cd\u4f5c\u4e3a\u6838\u5fc3\uff0c\u8bed\u6cd5\u56fa\u5b9a\uff0c\u6613\u4e8e\u4e0a\u624b\u3002<\/li>\n\n\n\n
  • \u5e38\u7528\u7248\u672c\uff1a\u6700\u65b0\u7248\u672c\u5982 MySQL 8.0\u3001PostgreSQL 15\u3001SQL Server 2022\u3002<\/li>\n<\/ul>\n\n\n\n
    \n\n\n\n

    Python<\/strong><\/h3>\n\n\n\n
      \n
    • \u7528\u9014<\/strong>\uff1a\u901a\u7528\u7f16\u7a0b\u8bed\u8a00\uff0c\u5e94\u7528\u9886\u57df\u5305\u62ec\u6570\u636e\u5206\u6790\u3001\u4eba\u5de5\u667a\u80fd\u3001Web \u5f00\u53d1\u3001\u81ea\u52a8\u5316\u811a\u672c\u7b49\u3002<\/li>\n\n\n\n
    • \u8bed\u8a00\u7279\u70b9<\/strong>\uff1a<\/li>\n\n\n\n
    • \u9762\u5411\u5bf9\u8c61\u4e0e\u51fd\u6570\u5f0f\u7f16\u7a0b\u652f\u6301\u3002<\/li>\n\n\n\n
    • \u7075\u6d3b\u6027\u5f3a\uff0c\u8bed\u6cd5\u63a5\u8fd1\u81ea\u7136\u8bed\u8a00\uff0c\u9002\u5408\u5feb\u901f\u5f00\u53d1\u3002<\/li>\n\n\n\n
    • \u5e38\u7528\u7248\u672c\uff1a\u5f53\u524d\u6700\u65b0\u7248\u672c\u4e3a Python 3.12<\/strong>\uff0c\u6027\u80fd\u66f4\u5f3a\uff0c\u7c7b\u578b\u652f\u6301\u66f4\u53cb\u597d\u3002<\/li>\n<\/ul>\n\n\n\n
      \n\n\n\n

      2. \u6838\u5fc3\u8bed\u8a00\u7279\u6027\u5bf9\u6bd4<\/strong><\/h2>\n\n\n\n

      2.1 \u8bed\u6cd5\u5bf9\u6bd4<\/strong><\/h3>\n\n\n\n
        \n
      • SQL \u8bed\u6cd5\uff08\u6700\u65b0\u7248\u672c\u7279\u8272\uff09<\/strong>\uff1a<\/li>\n\n\n\n
      • \u4e3b\u8981\u7528\u4e8e\u6570\u636e\u67e5\u8be2\u4e0e\u64cd\u4f5c\uff0c\u8bed\u6cd5\u56fa\u5b9a\uff0c\u9002\u5408\u521d\u5b66\u8005\u3002<\/li>\n\n\n\n
      • \u5173\u952e\u7279\u6027\uff08\u57fa\u4e8e MySQL 8.0 \u548c PostgreSQL 15\uff09\uff1a
        • \u7a97\u53e3\u51fd\u6570<\/strong>\uff1a\u5b9e\u73b0\u590d\u6742\u7684\u6392\u540d\u3001\u805a\u5408\u5206\u6790\u3002<\/li>
        • JSON \u652f\u6301<\/strong>\uff1a\u65b9\u4fbf\u5b58\u50a8\u548c\u64cd\u4f5c\u975e\u7ed3\u6784\u5316\u6570\u636e\u3002<\/li>
        • CTE\uff08\u516c\u7528\u8868\u8868\u8fbe\u5f0f\uff09<\/strong>\uff1a\u589e\u5f3a\u67e5\u8be2\u7684\u53ef\u8bfb\u6027\u4e0e\u590d\u7528\u6027\u3002<\/li><\/ul>WITH Sales AS ( SELECT product_id, SUM(quantity) AS total_sold FROM sales GROUP BY product_id ) SELECT * FROM Sales WHERE total_sold > 100;<\/code><\/li>\n\n\n\n
        • Python \u8bed\u6cd5\uff083.12 \u7279\u6027\uff09<\/strong>\uff1a<\/li>\n\n\n\n
        • \u7075\u6d3b\u6027\u5f3a\uff0c\u9002\u5408\u591a\u573a\u666f\u5f00\u53d1\u3002<\/li>\n\n\n\n
        • \u65b0\u589e\u7279\u6027\uff1a
          • \u6027\u80fd\u4f18\u5316<\/strong>\uff1aPython 3.12 \u7684\u6027\u80fd\u6bd4 3.11 \u63d0\u9ad8 5% – 20%\u3002<\/li>
          • \u7c7b\u578b\u6ce8\u89e3\u6539\u8fdb<\/strong>\uff1a\u652f\u6301 Self<\/code> \u7c7b\u578b\u3002<\/li>
          • f-string \u4f18\u5316<\/strong>\uff1a\u66f4\u5feb\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u652f\u6301\u3002<\/li><\/ul>from typing import Self class MyClass: def copy(self) -> Self: return MyClass() print(f\"Hello, {'Python'}!\") # \u8f93\u51fa\uff1aHello, Python!<\/code><\/li>\n<\/ul>\n\n\n\n
            \n\n\n\n

            2.2 \u5e94\u7528\u573a\u666f<\/strong><\/h3>\n\n\n\n
              \n
            • SQL<\/strong>\uff1a<\/li>\n\n\n\n
            • \u6570\u636e\u5e93\u64cd\u4f5c\uff1a\u5982\u7535\u5546\u7f51\u7ad9\u7684\u8ba2\u5355\u7ba1\u7406\u3002<\/li>\n\n\n\n
            • \u6570\u636e\u5206\u6790\uff1a\u9002\u5408\u5728\u6570\u636e\u5e93\u4e2d\u6267\u884c\u521d\u6b65\u6570\u636e\u6e05\u6d17\u548c\u5206\u6790\u3002<\/li>\n\n\n\n
            • \u6570\u636e\u53ef\u89c6\u5316\u652f\u6301\uff1a\u7ed3\u5408 BI \u5de5\u5177\uff08\u5982 Tableau\uff09\u3002<\/li>\n\n\n\n
            • Python<\/strong>\uff1a<\/li>\n\n\n\n
            • \u6570\u636e\u79d1\u5b66\uff1a\u7ed3\u5408 Pandas\u3001NumPy \u8fdb\u884c\u6df1\u5ea6\u5206\u6790\u3002<\/li>\n\n\n\n
            • Web \u5f00\u53d1\uff1a\u4f7f\u7528 Flask \u6216 Django \u6784\u5efa\u540e\u7aef\u670d\u52a1\u3002<\/li>\n\n\n\n
            • \u722c\u866b\u5f00\u53d1\uff1a\u901a\u8fc7 requests\u3001BeautifulSoup \u6293\u53d6\u7f51\u9875\u6570\u636e\u3002<\/li>\n\n\n\n
            • \u4eba\u5de5\u667a\u80fd\uff1a\u4f7f\u7528 TensorFlow\u3001PyTorch \u6784\u5efa\u6a21\u578b\u3002<\/li>\n<\/ul>\n\n\n\n
              \n\n\n\n

              2.3 \u5b66\u4e60\u66f2\u7ebf<\/strong><\/h3>\n\n\n\n
              \u7ef4\u5ea6<\/strong><\/th>SQL<\/strong><\/th>Python<\/strong><\/th><\/tr><\/thead>
              \u5165\u95e8\u96be\u5ea6<\/strong><\/td>\u975e\u5e38\u4f4e\uff1a\u8bed\u6cd5\u56fa\u5b9a\uff0c\u76f4\u89c2\u6613\u5b66<\/td>\u4f4e\uff1a\u8bed\u6cd5\u7b80\u5355\uff0c\u63a5\u8fd1\u81ea\u7136\u8bed\u8a00<\/td><\/tr>
              \u5b66\u4e60\u65f6\u957f<\/strong><\/td>\u77ed\uff1a\u4e00\u5468\u638c\u63e1\u57fa\u672c\u67e5\u8be2\u548c\u64cd\u4f5c<\/td>\u4e2d\uff1a\u9700\u8981\u51e0\u5468\u638c\u63e1\u57fa\u7840\u548c\u6838\u5fc3\u8bed\u6cd5<\/td><\/tr>
              \u8fdb\u9636\u96be\u5ea6<\/strong><\/td>\u4e2d\uff1a\u6d89\u53ca\u6027\u80fd\u4f18\u5316\u3001\u590d\u6742\u67e5\u8be2<\/td>\u4e2d\u5230\u9ad8\uff1a\u9ad8\u7ea7\u7f16\u7a0b\u3001\u6846\u67b6\u5b66\u4e60\u6709\u6311\u6218<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
              \n\n\n\n

              3. \u8bed\u8a00\u751f\u6001\u4e0e\u5de5\u5177\u652f\u6301<\/strong><\/h2>\n\n\n\n

              3.1 SQL<\/strong><\/h3>\n\n\n\n
                \n
              • \u6570\u636e\u5e93\u7ba1\u7406\u5de5\u5177<\/strong>\uff1a<\/li>\n\n\n\n
              • \u56fe\u5f62\u5316\u5de5\u5177\uff1a\u5982 MySQL Workbench\u3001DBeaver\u3001pgAdmin\u3002<\/li>\n\n\n\n
              • \u547d\u4ee4\u884c\u5de5\u5177\uff1a\u5982 MySQL CLI\u3001psql\u3002<\/li>\n\n\n\n
              • \u6269\u5c55\u5de5\u5177<\/strong>\uff1a<\/li>\n\n\n\n
              • SQLAlchemy\uff08Python\u5e93\uff09\uff1a\u901a\u8fc7 Python \u64cd\u4f5c\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
              • BI \u5de5\u5177\uff1a\u5982 Tableau\u3001Power BI\u3002<\/li>\n<\/ul>\n\n\n\n

                3.2 Python<\/strong><\/h3>\n\n\n\n
                  \n
                • \u96c6\u6210\u5f00\u53d1\u73af\u5883\uff08IDE\uff09<\/strong>\uff1a<\/li>\n\n\n\n
                • PyCharm\uff1a\u529f\u80fd\u5168\u9762\uff0c\u9002\u5408\u5927\u9879\u76ee\u3002<\/li>\n\n\n\n
                • Jupyter Notebook\uff1a\u9002\u5408\u6570\u636e\u5206\u6790\u548c\u5b66\u4e60\u3002<\/li>\n\n\n\n
                • VS Code\uff1a\u8f7b\u91cf\u7ea7\uff0c\u6269\u5c55\u6027\u5f3a\u3002<\/li>\n\n\n\n
                • \u751f\u6001\u7cfb\u7edf<\/strong>\uff1a<\/li>\n\n\n\n
                • \u79d1\u5b66\u8ba1\u7b97\uff1aNumPy\u3001SciPy\u3002<\/li>\n\n\n\n
                • \u6570\u636e\u5206\u6790\uff1aPandas\u3002<\/li>\n\n\n\n
                • \u6570\u636e\u5e93\u4ea4\u4e92\uff1asqlite3\u3001pymysql\u3001SQLAlchemy\u3002<\/li>\n\n\n\n
                • \u722c\u866b\uff1aScrapy\u3001BeautifulSoup\u3002<\/li>\n\n\n\n
                • Web \u5f00\u53d1\uff1aFlask\u3001Django\u3002<\/li>\n\n\n\n
                • \u4eba\u5de5\u667a\u80fd\uff1aTensorFlow\u3001PyTorch\u3002<\/li>\n<\/ul>\n\n\n\n
                  \n\n\n\n

                  4. \u7efc\u5408\u5b66\u4e60\u5efa\u8bae<\/strong><\/h2>\n\n\n\n

                  4.1 \u5982\u679c\u53ea\u5173\u6ce8\u6570\u636e\u64cd\u4f5c<\/strong><\/h3>\n\n\n\n
                    \n
                  • \u4ece SQL<\/strong> \u5165\u624b\uff1a<\/li>\n<\/ul>\n\n\n\n
                      \n
                    1. \u5b66\u4e60\u57fa\u7840\u8bed\u6cd5\uff1aSELECT\u3001INSERT\u3001UPDATE\u3001DELETE\u3002<\/li>\n\n\n\n
                    2. \u8fdb\u9636\u5b66\u4e60\uff1a\u7a97\u53e3\u51fd\u6570\u3001CTE\u3001\u4e8b\u52a1\u7ba1\u7406\u3002<\/li>\n\n\n\n
                    3. \u5b9e\u8df5\uff1a\u8fde\u63a5 MySQL\/PostgreSQL\uff0c\u5c1d\u8bd5\u771f\u5b9e\u6570\u636e\u5e93\u9879\u76ee\u3002<\/li>\n<\/ol>\n\n\n\n

                      4.2 \u5982\u679c\u9700\u8981\u7f16\u7a0b\u4e0e\u6570\u636e\u7ed3\u5408<\/strong><\/h3>\n\n\n\n
                        \n
                      • \u4ece Python<\/strong> \u5165\u624b\uff1a<\/li>\n<\/ul>\n\n\n\n
                          \n
                        1. \u5b66\u4e60\u57fa\u7840\u8bed\u6cd5\uff1a\u53d8\u91cf\u3001\u6570\u636e\u7c7b\u578b\u3001\u5faa\u73af\u3001\u51fd\u6570\u3002<\/li>\n\n\n\n
                        2. \u638c\u63e1\u6570\u636e\u5206\u6790\u5de5\u5177\uff1aPandas\u3001Matplotlib\u3002<\/li>\n\n\n\n
                        3. \u5b66\u4e60\u6570\u636e\u5e93\u4ea4\u4e92\uff1a\u4f7f\u7528 sqlite3<\/code> \u6216 SQLAlchemy \u64cd\u4f5c\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
                        4. \u8fdb\u9636\u65b9\u5411\uff1a\n
                            \n
                          • \u6570\u636e\u5206\u6790\uff1a\u6574\u5408 SQL \u548c Python\u3002<\/li>\n\n\n\n
                          • Web \u5f00\u53d1\uff1a\u5b66\u4e60 Flask \u548c Django\u3002<\/li>\n\n\n\n
                          • \u4eba\u5de5\u667a\u80fd\uff1a\u5b66\u4e60 NumPy \u548c PyTorch\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
                            \n\n\n\n

                            5. SQL \u548c Python \u7684\u7ed3\u5408<\/strong><\/h2>\n\n\n\n

                            \u73b0\u4ee3\u5f00\u53d1\u4e2d\uff0cSQL \u548c Python \u5e38\u7ed3\u5408\u4f7f\u7528\uff0c\u53d1\u6325\u4e24\u8005\u4f18\u52bf\uff1a<\/p>\n\n\n\n

                              \n
                            • \u6570\u636e\u63d0\u53d6<\/strong>\uff1a\u7528 SQL \u67e5\u8be2\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
                            • \u6570\u636e\u5904\u7406\u4e0e\u5206\u6790<\/strong>\uff1a\u7528 Python \u7684 Pandas \u5904\u7406 SQL \u63d0\u53d6\u7684\u6570\u636e\u3002<\/li>\n\n\n\n
                            • \u793a\u4f8b<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                import pandas as pd\n  import sqlite3\n\n  # \u8fde\u63a5\u6570\u636e\u5e93\u5e76\u6267\u884c SQL \u67e5\u8be2\n  conn = sqlite3.connect(\"example.db\")\n  query = \"SELECT * FROM sales WHERE total > 100\"\n  df = pd.read_sql_query(query, conn)\n\n  # \u7528 Pandas \u8fdb\u884c\u6570\u636e\u5206\u6790\n  print(df.describe())\n  conn.close()<\/code><\/pre>\n\n\n\n
                              \n\n\n\n
                              6. \u603b\u7ed3\u4e0e\u5efa\u8bae<\/strong><\/h2>\n\n\n\n
                              \u8bed\u8a00<\/strong><\/th>\u9002\u5408\u4eba\u7fa4<\/strong><\/th>\u63a8\u8350\u5b66\u4e60\u987a\u5e8f<\/strong><\/th><\/tr><\/thead>
                              SQL<\/strong><\/td>\u6570\u636e\u5206\u6790\u5e08\u3001\u6570\u636e\u5e93\u7ba1\u7406\u5458<\/td>\u5feb\u901f\u5165\u95e8\uff0c\u9002\u5408\u521d\u5b66\u8005<\/td><\/tr>
                              Python<\/strong><\/td>\u6570\u636e\u79d1\u5b66\u5bb6\u3001Web\u5f00\u53d1\u8005\u3001\u81ea\u52a8\u5316\u5de5\u7a0b\u5e08<\/td>\u7efc\u5408\u5b66\u4e60\uff0c\u9002\u5408\u591a\u9886\u57df\u5f00\u53d1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                                \n
                              • \u5982\u679c\u53ea\u9700\u8981\u7b80\u5355\u7684\u6570\u636e\u67e5\u8be2\uff0c\u4f18\u5148\u5b66 SQL<\/strong>\u3002<\/li>\n\n\n\n
                              • \u5982\u679c\u76ee\u6807\u66f4\u5e7f\u6cdb\uff08\u5982\u6570\u636e\u79d1\u5b66\u3001\u7f16\u7a0b\u5f00\u53d1\uff09\uff0c\u4f18\u5148\u5b66 Python<\/strong>\u3002<\/li>\n\n\n\n
                              • \u6700\u4f73\u8def\u5f84\uff1a\u5148\u5b66 SQL \u63d0\u53d6\u6570\u636e\uff0c\u518d\u7528 Python \u6df1\u5ea6\u5206\u6790\u548c\u5f00\u53d1<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n
                                \u6839\u636e\u4e2a\u4eba\u5174\u8da3\u548c\u804c\u4e1a\u89c4\u5212\u9009\u62e9\u5408\u9002\u7684\u5b66\u4e60\u65b9\u5411\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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