{"id":143859,"date":"2024-11-01T01:51:31","date_gmt":"2024-10-31T17:51:31","guid":{"rendered":"https:\/\/server.hk\/cnblog\/143859\/"},"modified":"2024-11-01T01:51:32","modified_gmt":"2024-10-31T17:51:32","slug":"sql-%e9%80%a3%e6%8e%a5%e6%9c%ac%e5%9c%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e7%b0%a1%e5%96%ae%e4%bb%a3%e7%a2%bc-sql-%e9%80%a3%e6%8e%a5%e6%9c%ac%e5%9c%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bb%a3%e7%a2%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/143859\/","title":{"rendered":"SQL \u9023\u63a5\u672c\u5730\u6578\u64da\u5eab\u7684\u7c21\u55ae\u4ee3\u78bc (sql \u9023\u63a5\u672c\u5730\u6578\u64da\u5eab\u4ee3\u78bc)"},"content":{"rendered":"

SQL \u9023\u63a5\u672c\u5730\u6578\u64da\u5eab\u7684\u7c21\u55ae\u4ee3\u78bc<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002\u7121\u8ad6\u662f\u958b\u767c\u61c9\u7528\u7a0b\u5e8f\u9084\u662f\u9032\u884c\u6578\u64da\u5206\u6790\uff0c\u80fd\u5920\u6709\u6548\u5730\u9023\u63a5\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u90fd\u662f\u4e00\u9805\u57fa\u672c\u6280\u80fd\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 SQL \u9023\u63a5\u672c\u5730\u6578\u64da\u5eab\u7684\u7c21\u55ae\u4ee3\u78bc\uff0c\u5e6b\u52a9\u8b80\u8005\u5feb\u901f\u4e0a\u624b\u3002<\/p>\n

\u4ec0\u9ebc\u662f SQL\uff1f<\/h2>\n

SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u4e00\u7a2e\u5c08\u9580\u7528\u65bc\u7ba1\u7406\u548c\u64cd\u4f5c\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7684\u7de8\u7a0b\u8a9e\u8a00\u3002\u5b83\u5141\u8a31\u7528\u6236\u57f7\u884c\u5404\u7a2e\u64cd\u4f5c\uff0c\u5982\u67e5\u8a62\u6578\u64da\u3001\u66f4\u65b0\u6578\u64da\u3001\u63d2\u5165\u6578\u64da\u548c\u522a\u9664\u6578\u64da\u3002SQL \u7684\u8a9e\u6cd5\u7c21\u55ae\u660e\u77ad\uff0c\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u8f15\u9b06\u5730\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002<\/p>\n

\u9023\u63a5\u672c\u5730\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n

\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u5df2\u7d93\u5b89\u88dd\u4e86\u76f8\u61c9\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08\u5982 MySQL\u3001PostgreSQL \u6216 SQLite\uff09\u3002\u4ee5\u4e0b\u662f\u9023\u63a5\u672c\u5730\u6578\u64da\u5eab\u7684\u4e00\u822c\u6b65\u9a5f\uff1a<\/p>\n

    \n
  1. \u5b89\u88dd\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002<\/li>\n
  2. \u5275\u5efa\u6578\u64da\u5eab\u548c\u7528\u6236\u3002<\/li>\n
  3. \u4f7f\u7528 SQL \u8a9e\u53e5\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002<\/li>\n<\/ol>\n

    \u4f7f\u7528 MySQL \u9023\u63a5\u672c\u5730\u6578\u64da\u5eab<\/h2>\n

    \u4ee5\u4e0b\u662f\u4f7f\u7528 MySQL \u9023\u63a5\u672c\u5730\u6578\u64da\u5eab\u7684\u7c21\u55ae\u4ee3\u78bc\u793a\u4f8b\uff1a<\/p>\n

    import mysql.connector\n\n# \u5efa\u7acb\u9023\u63a5\nconn = mysql.connector.connect(\n    host=\"localhost\",\n    user=\"your_username\",\n    password=\"your_password\",\n    database=\"your_database\"\n)\n\n# \u6aa2\u67e5\u9023\u63a5\nif conn.is_connected():\n    print(\"\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\")\nelse:\n    print(\"\u7121\u6cd5\u9023\u63a5\u5230\u6578\u64da\u5eab\")\n\n# \u95dc\u9589\u9023\u63a5\nconn.close()\n<\/code><\/pre>\n
    \u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86 mysql.connector<\/code> \u6a21\u584a\u4f86\u5efa\u7acb\u8207 MySQL \u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u60a8\u9700\u8981\u66ff\u63db your_username<\/code>\u3001your_password<\/code> \u548c your_database<\/code> \u70ba\u60a8\u7684\u5be6\u969b\u6578\u64da\u5eab\u7528\u6236\u540d\u3001\u5bc6\u78bc\u548c\u6578\u64da\u5eab\u540d\u7a31\u3002<\/p>\n
    \u4f7f\u7528 PostgreSQL \u9023\u63a5\u672c\u5730\u6578\u64da\u5eab<\/h2>\n
    \u5982\u679c\u60a8\u4f7f\u7528\u7684\u662f PostgreSQL\uff0c\u5247\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n
    import psycopg2\n\n# \u5efa\u7acb\u9023\u63a5\nconn = psycopg2.connect(\n    host=\"localhost\",\n    database=\"your_database\",\n    user=\"your_username\",\n    password=\"your_password\"\n)\n\n# \u6aa2\u67e5\u9023\u63a5\nif conn:\n    print(\"\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\")\nelse:\n    print(\"\u7121\u6cd5\u9023\u63a5\u5230\u6578\u64da\u5eab\")\n\n# \u95dc\u9589\u9023\u63a5\nconn.close()\n<\/code><\/pre>\n
    \u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86 psycopg2<\/code> \u6a21\u584a\u4f86\u9023\u63a5 PostgreSQL \u6578\u64da\u5eab\u3002\u540c\u6a23\uff0c\u8acb\u6839\u64da\u60a8\u7684\u5be6\u969b\u60c5\u6cc1\u66ff\u63db\u7528\u6236\u540d\u3001\u5bc6\u78bc\u548c\u6578\u64da\u5eab\u540d\u7a31\u3002<\/p>\n
    \u4f7f\u7528 SQLite \u9023\u63a5\u672c\u5730\u6578\u64da\u5eab<\/h2>\n
    \u5c0d\u65bc SQLite\uff0c\u9023\u63a5\u7684\u4ee3\u78bc\u66f4\u52a0\u7c21\u55ae\uff1a<\/p>\n
    import sqlite3\n\n# \u5efa\u7acb\u9023\u63a5\nconn = sqlite3.connect('your_database.db')\n\n# \u6aa2\u67e5\u9023\u63a5\nprint(\"\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\")\n\n# \u95dc\u9589\u9023\u63a5\nconn.close()\n<\/code><\/pre>\n
    \u5728\u9019\u88e1\uff0c\u6211\u5011\u53ea\u9700\u6307\u5b9a\u6578\u64da\u5eab\u6587\u4ef6\u7684\u540d\u7a31\uff0cSQLite \u5c07\u81ea\u52d5\u5275\u5efa\u8a72\u6587\u4ef6\uff08\u5982\u679c\u5b83\u4e0d\u5b58\u5728\uff09\u3002<\/p>\n
    \u7e3d\u7d50<\/h2>\n
    \u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528 SQL \u9023\u63a5\u672c\u5730\u6578\u64da\u5eab\u7684\u7c21\u55ae\u4ee3\u78bc\uff0c\u6db5\u84cb\u4e86 MySQL\u3001PostgreSQL \u548c SQLite \u4e09\u7a2e\u5e38\u898b\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u7684\u9023\u63a5\u65b9\u6cd5\u5f8c\uff0c\u60a8\u53ef\u4ee5\u958b\u59cb\u9032\u884c\u66f4\u8907\u96dc\u7684\u6578\u64da\u64cd\u4f5c\u548c\u67e5\u8a62\u3002<\/p>\n
    \u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u6258\u7ba1\u60a8\u7684\u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\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\u4f7f\u7528\u7c21\u55ae\u7684 SQL \u4ee3\u78bc\u9023\u63a5\u672c\u5730\u6578\u64da\u5eab\uff0c\u5feb\u901f\u4e0a\u624b\u6578\u64da\u7ba1\u7406\u8207\u67e5\u8a62\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-143859","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143859","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=143859"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143859\/revisions"}],"predecessor-version":[{"id":143860,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143859\/revisions\/143860"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=143859"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=143859"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=143859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}