{"id":96988,"date":"2024-10-20T14:03:16","date_gmt":"2024-10-20T06:03:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96988\/"},"modified":"2024-10-20T14:03:17","modified_gmt":"2024-10-20T06:03:17","slug":"python%e7%b7%a8%e7%a8%8b%e6%8a%80%e5%b7%a7%ef%bc%9a%e7%8d%b2%e5%8f%96%e7%95%b6%e5%89%8d%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%8d%e7%a8%b1-%e5%a6%82%e4%bd%95%e7%8d%b2%e5%be%97%e7%95%b6%e5%89%8d%e4%bd%bf","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96988\/","title":{"rendered":"Python\u7de8\u7a0b\u6280\u5de7\uff1a\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31 (\u5982\u4f55\u7372\u5f97\u7576\u524d\u4f7f\u7528\u6578\u64da\u5eab\u540d\u7a31)"},"content":{"rendered":"

Python\u7de8\u7a0b\u6280\u5de7\uff1a\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31<\/h1>\n

\u5728\u4f7f\u7528Python\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u7372\u53d6\u7576\u524d\u4f7f\u7528\u7684\u6578\u64da\u5eab\u540d\u7a31\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u78ba\u8a8d\u7576\u524d\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u9084\u80fd\u5728\u9032\u884c\u6578\u64da\u64cd\u4f5c\u6642\u907f\u514d\u932f\u8aa4\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\u4f7f\u7528Python\u4f86\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n

\u4f7f\u7528MySQL\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31<\/h2>\n

\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528SQL\u67e5\u8a62\u4f86\u7372\u53d6\u7576\u524d\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Python\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n

import mysql.connector\n\n# \u9023\u63a5\u5230MySQL\u6578\u64da\u5eab\nconnection = mysql.connector.connect(\n    host='localhost',\n    user='your_username',\n    password='your_password'\n)\n\n# \u5275\u5efa\u6e38\u6a19\u5c0d\u8c61\ncursor = connection.cursor()\n\n# \u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31\ncursor.execute(\"SELECT DATABASE();\")\ncurrent_db = cursor.fetchone()\n\nprint(\"\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31:\", current_db[0])\n\n# \u95dc\u9589\u6e38\u6a19\u548c\u9023\u63a5\ncursor.close()\nconnection.close()\n<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u9023\u63a5\u5230MySQL\u6578\u64da\u5eab\uff0c\u7136\u5f8c\u4f7f\u7528SQL\u8a9e\u53e5\u201cSELECT DATABASE();\u201d\u4f86\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u7684\u540d\u7a31\u3002\u6700\u5f8c\uff0c\u6211\u5011\u6253\u5370\u51fa\u4f86\u4e26\u95dc\u9589\u9023\u63a5\u3002<\/p>\n
\u4f7f\u7528PostgreSQL\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31<\/h2>\n
\u5c0d\u65bcPostgreSQL\uff0c\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31\u7684\u65b9\u5f0f\u8207MySQL\u985e\u4f3c\u3002\u4ee5\u4e0b\u662f\u76f8\u61c9\u7684Python\u4ee3\u78bc\uff1a<\/p>\n
import psycopg2\n\n# \u9023\u63a5\u5230PostgreSQL\u6578\u64da\u5eab\nconnection = psycopg2.connect(\n    host='localhost',\n    database='your_database',\n    user='your_username',\n    password='your_password'\n)\n\n# \u5275\u5efa\u6e38\u6a19\u5c0d\u8c61\ncursor = connection.cursor()\n\n# \u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31\ncursor.execute(\"SELECT current_database();\")\ncurrent_db = cursor.fetchone()\n\nprint(\"\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31:\", current_db[0])\n\n# \u95dc\u9589\u6e38\u6a19\u548c\u9023\u63a5\ncursor.close()\nconnection.close()\n<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u201cSELECT current_database();\u201d\u4f86\u7372\u53d6\u7576\u524d\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002\u9019\u6a23\u53ef\u4ee5\u65b9\u4fbf\u5730\u78ba\u8a8d\u7576\u524d\u7684\u6578\u64da\u5eab\u74b0\u5883\u3002<\/p>\n
\u4f7f\u7528SQLite\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31<\/h2>\n
\u5c0d\u65bcSQLite\uff0c\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31\u7684\u65b9\u5f0f\u7a0d\u6709\u4e0d\u540c\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n
import sqlite3\n\n# \u9023\u63a5\u5230SQLite\u6578\u64da\u5eab\nconnection = sqlite3.connect('your_database.db')\n\n# \u5275\u5efa\u6e38\u6a19\u5c0d\u8c61\ncursor = connection.cursor()\n\n# \u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31\ncursor.execute(\"PRAGMA database_list;\")\ndatabases = cursor.fetchall()\n\nfor db in databases:\n    print(\"\u6578\u64da\u5eab\u540d\u7a31:\", db[1])\n\n# \u95dc\u9589\u6e38\u6a19\u548c\u9023\u63a5\ncursor.close()\nconnection.close()\n<\/code><\/pre>\n
\u5728SQLite\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u201cPRAGMA database_list;\u201d\u4f86\u7372\u53d6\u6240\u6709\u6578\u64da\u5eab\u7684\u540d\u7a31\uff0c\u7136\u5f8c\u904d\u6b77\u4e26\u6253\u5370\u51fa\u4f86\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31\u5728Python\u7de8\u7a0b\u4e2d\u662f\u4e00\u500b\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u7121\u8ad6\u662f\u4f7f\u7528MySQL\u3001PostgreSQL\u9084\u662fSQLite\uff0c\u5747\u53ef\u901a\u904e\u7c21\u55ae\u7684SQL\u67e5\u8a62\u4f86\u5be6\u73fe\u3002\u9019\u4e9b\u6280\u5de7\u4e0d\u50c5\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u5eab\uff0c\u9084\u80fd\u5728\u9032\u884c\u6578\u64da\u64cd\u4f5c\u6642\u63d0\u4f9b\u5fc5\u8981\u7684\u5b89\u5168\u6027\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684\u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 \u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2\u5982\u4f55\u5728Python\u4e2d\u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31\uff0c\u638c\u63e1\u5be6\u7528\u7de8\u7a0b\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-96988","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96988","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=96988"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96988\/revisions"}],"predecessor-version":[{"id":96989,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96988\/revisions\/96989"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}