{"id":173341,"date":"2024-11-07T17:13:48","date_gmt":"2024-11-07T09:13:48","guid":{"rendered":"https:\/\/server.hk\/cnblog\/173341\/"},"modified":"2024-11-07T17:13:49","modified_gmt":"2024-11-07T09:13:49","slug":"%e5%a6%82%e4%bd%95%e8%a8%aa%e5%95%8f%e4%b8%8a%e5%b1%a4%e5%96%ae%e5%85%83%e6%a0%bc%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-%e6%80%8e%e9%ba%bc%e5%8e%bb%e4%b8%8a%e9%9d%a2%e7%9a%84%e5%96%ae%e5%85%83%e6%a0%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/173341\/","title":{"rendered":"\u5982\u4f55\u8a2a\u554f\u4e0a\u5c64\u55ae\u5143\u683c\u7684\u6578\u64da\u5eab (\u600e\u9ebc\u53bb\u4e0a\u9762\u7684\u55ae\u5143\u683c\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e8%a8%aa%e5%95%8f%e4%b8%8a%e5%b1%a4%e5%96%ae%e5%85%83%e6%a0%bc%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-%e6%80%8e%e9%ba%bc%e5%8e%bb%e4%b8%8a%e9%9d%a2%e7%9a%84%e5%96%ae%e5%85%83%e6%a0%bc-GShnNNlDXQ\">\u5982\u4f55\u8a2a\u554f\u4e0a\u5c64\u55ae\u5143\u683c\u7684\u6578\u64da\u5eab 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id=\"%e8%a8%aa%e5%95%8f%e4%b8%8a%e5%b1%a4%e5%96%ae%e5%85%83%e6%a0%bc%e6%95%b8%e6%93%9a%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%96%b9%e6%b3%95-GShnNNlDXQ\">\u8a2a\u554f\u4e0a\u5c64\u55ae\u5143\u683c\u6578\u64da\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n<p>\u8a2a\u554f\u4e0a\u5c64\u55ae\u5143\u683c\u7684\u6578\u64da\u5eab\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u78ba\u5b9a\u6578\u64da\u5eab\u7d50\u69cb\uff1a<\/strong>\u5728\u8a2a\u554f\u6578\u64da\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3\u6578\u64da\u5eab\u7684\u7d50\u69cb\uff0c\u5305\u62ec\u8868\u683c\u3001\u5b57\u6bb5\u53ca\u5176\u95dc\u4fc2\u3002<\/li>\n<li><strong>\u4f7f\u7528\u67e5\u8a62\u8a9e\u8a00\uff1a<\/strong>\u5927\u591a\u6578\u6578\u64da\u5eab\u4f7f\u7528\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff08SQL\uff09\u4f86\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002\u901a\u904e\u7de8\u5beb\u9069\u7576\u7684SQL\u67e5\u8a62\uff0c\u53ef\u4ee5\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u57f7\u884c\u67e5\u8a62\uff1a<\/strong>\u4f7f\u7528\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u57f7\u884c\u67e5\u8a62\uff0c\u4e26\u7372\u53d6\u7d50\u679c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8sql%e8%a8%aa%e5%95%8f%e4%b8%8a%e5%b1%a4%e5%96%ae%e5%85%83%e6%a0%bc%e6%95%b8%e6%93%9a-GShnNNlDXQ\">\u793a\u4f8b\uff1a\u4f7f\u7528SQL\u8a2a\u554f\u4e0a\u5c64\u55ae\u5143\u683c\u6578\u64da<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528SQL\u67e5\u8a62\u4f86\u8a2a\u554f\u4e0a\u5c64\u55ae\u5143\u683c\u7684\u6578\u64da\u3002\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\u683c\uff0c\u5176\u4e2d\u5305\u542b\u54e1\u5de5\u7684ID\u3001\u59d3\u540d\u548c\u4e0a\u7d1aID\u3002<\/p>\n<pre><code>\nSELECT e1.name AS EmployeeName, e2.name AS ManagerName\nFROM employees e1\nJOIN employees e2 ON e1.manager_id = e2.id;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u81ea\u9023\u63a5\uff08self-join\uff09\u4f86\u7372\u53d6\u6bcf\u4f4d\u54e1\u5de5\u53ca\u5176\u4e0a\u7d1a\u7684\u59d3\u540d\u3002\u9019\u6a23\u53ef\u4ee5\u6e05\u695a\u5730\u770b\u5230\u6bcf\u4f4d\u54e1\u5de5\u7684\u4e0a\u5c64\u55ae\u5143\u683c\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%b7%a8%e7%a8%8b%e8%aa%9e%e8%a8%80%e8%a8%aa%e5%95%8f%e6%95%b8%e6%93%9a%e5%ba%ab-GShnNNlDXQ\">\u4f7f\u7528\u7de8\u7a0b\u8a9e\u8a00\u8a2a\u554f\u6578\u64da\u5eab<\/h2>\n<p>\u9664\u4e86\u4f7f\u7528SQL\u67e5\u8a62\uff0c\u9084\u53ef\u4ee5\u901a\u904e\u7de8\u7a0b\u8a9e\u8a00\u4f86\u8a2a\u554f\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Python\u548cSQLite\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nimport sqlite3\n\n# \u9023\u63a5\u5230\u6578\u64da\u5eab\nconn = sqlite3.connect('example.db')\ncursor = conn.cursor()\n\n# \u57f7\u884c\u67e5\u8a62\ncursor.execute('''\n    SELECT e1.name AS EmployeeName, e2.name AS ManagerName\n    FROM employees e1\n    JOIN employees e2 ON e1.manager_id = e2.id;\n''')\n\n# \u7372\u53d6\u7d50\u679c\nrows = cursor.fetchall()\nfor row in rows:\n    print(f'Employee: {row[0]}, Manager: {row[1]}')\n\n# \u95dc\u9589\u9023\u63a5\nconn.close()\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528Python\u9023\u63a5\u5230SQLite\u6578\u64da\u5eab\uff0c\u57f7\u884c\u67e5\u8a62\u4e26\u6253\u5370\u7d50\u679c\u3002\u9019\u7a2e\u65b9\u6cd5\u4f7f\u5f97\u6578\u64da\u7684\u8a2a\u554f\u548c\u64cd\u4f5c\u66f4\u52a0\u9748\u6d3b\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GShnNNlDXQ\">\u7e3d\u7d50<\/h2>\n<p>\u8a2a\u554f\u4e0a\u5c64\u55ae\u5143\u683c\u7684\u6578\u64da\u5eab\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\uff0c\u7121\u8ad6\u662f\u5728\u4f01\u696d\u74b0\u5883\u9084\u662f\u500b\u4eba\u9805\u76ee\u4e2d\u3002\u901a\u904e\u4e86\u89e3\u6578\u64da\u5eab\u7d50\u69cb\u3001\u4f7f\u7528SQL\u67e5\u8a62\u4ee5\u53ca\u7de8\u7a0b\u8a9e\u8a00\u4f86\u64cd\u4f5c\u6578\u64da\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u7372\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u4f86\u904b\u884c\u6578\u64da\u5eab\u4e5f\u662f\u4e00\u500b\u660e\u667a\u7684\u9078\u64c7\u3002\u9019\u6a23\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u8a2a\u554f\u4e0a\u5c64\u55ae\u5143\u683c\u7684\u6578\u64da\u5eab\uff0c\u638c\u63e1\u6578\u64da\u6aa2\u7d22\u6280\u5de7\uff0c\u63d0\u5347\u5de5\u4f5c\u6548\u7387\uff0c\u8f15\u9b06\u7ba1\u7406\u548c\u5206\u6790\u6578\u64da\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-173341","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173341","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=173341"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173341\/revisions"}],"predecessor-version":[{"id":173342,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173341\/revisions\/173342"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=173341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=173341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=173341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}