{"id":187036,"date":"2024-11-11T10:55:19","date_gmt":"2024-11-11T02:55:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187036\/"},"modified":"2024-11-11T10:55:20","modified_gmt":"2024-11-11T02:55:20","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a6%82%e4%bd%95%e6%b7%bb%e5%8a%a0%e6%96%b0%e6%95%b8%e6%93%9a%e8%a8%98%e9%8c%84%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b7%bb%e5%8a%a0%e8%a8%98%e9%8c%84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187036\/","title":{"rendered":"\u6578\u64da\u5eab\u5982\u4f55\u6dfb\u52a0\u65b0\u6578\u64da\u8a18\u9304\uff1f (\u6578\u64da\u5eab\u6dfb\u52a0\u8a18\u9304)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a6%82%e4%bd%95%e6%b7%bb%e5%8a%a0%e6%96%b0%e6%95%b8%e6%93%9a%e8%a8%98%e9%8c%84%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b7%bb%e5%8a%a0%e8%a8%98%e9%8c%84-BkJWQBbMAB\">\u6578\u64da\u5eab\u5982\u4f55\u6dfb\u52a0\u65b0\u6578\u64da\u8a18\u9304\uff1f (\u6578\u64da\u5eab\u6dfb\u52a0\u8a18\u9304)<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6578\u64da\u5eab\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u7121\u8ad6\u662f\u7db2\u7ad9\u3001\u79fb\u52d5\u61c9\u7528\u9084\u662f\u4f01\u696d\u7cfb\u7d71\uff0c\u6578\u64da\u5eab\u90fd\u7528\u65bc\u5b58\u5132\u548c\u7ba1\u7406\u5927\u91cf\u7684\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u6dfb\u52a0\u65b0\u6578\u64da\u8a18\u9304\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-BkJWQBbMAB\">\u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u662f\u4e00\u7a2e\u6709\u7d44\u7e54\u7684\u6578\u64da\u96c6\u5408\uff0c\u901a\u5e38\u4ee5\u8868\u683c\u7684\u5f62\u5f0f\u5b58\u5132\u3002\u6bcf\u500b\u8868\u683c\u7531\u884c\u548c\u5217\u7d44\u6210\uff0c\u5176\u4e2d\u884c\u4ee3\u8868\u6578\u64da\u8a18\u9304\uff0c\u5217\u5247\u4ee3\u8868\u6578\u64da\u7684\u5c6c\u6027\u3002\u6dfb\u52a0\u65b0\u6578\u64da\u8a18\u9304\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528\u7279\u5b9a\u7684\u67e5\u8a62\u8a9e\u8a00\uff0c\u5982SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8sql%e6%b7%bb%e5%8a%a0%e6%95%b8%e6%93%9a%e8%a8%98%e9%8c%84-BkJWQBbMAB\">\u4f7f\u7528SQL\u6dfb\u52a0\u6578\u64da\u8a18\u9304<\/h2>\n<p>\u5728SQL\u4e2d\uff0c\u6dfb\u52a0\u65b0\u6578\u64da\u8a18\u9304\u7684\u4e3b\u8981\u8a9e\u53e5\u662fINSERT\u3002\u9019\u500b\u8a9e\u53e5\u5141\u8a31\u7528\u6236\u5c07\u65b0\u7684\u884c\u63d2\u5165\u5230\u6307\u5b9a\u7684\u8868\u4e2d\u3002\u4ee5\u4e0b\u662fINSERT\u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>INSERT INTO \u8868\u540d (\u52171, \u52172, \u52173, ...)\nVALUES (\u503c1, \u503c2, \u503c3, ...);<\/code><\/pre>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e6%b7%bb%e5%8a%a0%e6%96%b0%e7%94%a8%e6%88%b6%e8%a8%98%e9%8c%84-BkJWQBbMAB\">\u793a\u4f8b\uff1a\u6dfb\u52a0\u65b0\u7528\u6236\u8a18\u9304<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cusers\u201d\u7684\u8868\uff0c\u8a72\u8868\u5305\u542b\u7528\u6236\u7684ID\u3001\u59d3\u540d\u548c\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u3002\u8981\u6dfb\u52a0\u4e00\u500b\u65b0\u7528\u6236\u7684\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>INSERT INTO users (id, name, email)\nVALUES (1, '\u5f35\u4e09', 'zhangsan@example.com');<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u4e00\u500b\u65b0\u7684\u7528\u6236\u8a18\u9304\u63d2\u5165\u5230\u201cusers\u201d\u8868\u4e2d\uff0cID\u70ba1\uff0c\u59d3\u540d\u70ba\u201c\u5f35\u4e09\u201d\uff0c\u96fb\u5b50\u90f5\u4ef6\u70ba\u201czhangsan@example.com\u201d\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-BkJWQBbMAB\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u6dfb\u52a0\u6578\u64da\u8a18\u9304\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u985e\u578b\u5339\u914d\uff1a<\/strong>\u78ba\u4fdd\u63d2\u5165\u7684\u6578\u64da\u985e\u578b\u8207\u8868\u4e2d\u5b9a\u7fa9\u7684\u5217\u985e\u578b\u76f8\u7b26\u3002\u4f8b\u5982\uff0c\u5982\u679c\u67d0\u5217\u5b9a\u7fa9\u70ba\u6574\u6578\u985e\u578b\uff0c\u5247\u63d2\u5165\u7684\u503c\u5fc5\u9808\u662f\u6574\u6578\u3002<\/li>\n<li><strong>\u552f\u4e00\u6027\u7d04\u675f\uff1a<\/strong>\u5982\u679c\u67d0\u5217\u8a2d\u7f6e\u4e86\u552f\u4e00\u6027\u7d04\u675f\uff08\u5982\u4e3b\u9375\uff09\uff0c\u5247\u63d2\u5165\u7684\u503c\u5fc5\u9808\u662f\u552f\u4e00\u7684\uff0c\u5426\u5247\u5c07\u6703\u5f15\u767c\u932f\u8aa4\u3002<\/li>\n<li><strong>NULL\u503c\u8655\u7406\uff1a<\/strong>\u5982\u679c\u67d0\u5217\u5141\u8a31NULL\u503c\uff0c\u53ef\u4ee5\u5728INSERT\u8a9e\u53e5\u4e2d\u7701\u7565\u8a72\u5217\uff0c\u6216\u660e\u78ba\u63d2\u5165NULL\u3002<\/li>\n<\/ul>\n<h3 id=\"%e6%89%b9%e9%87%8f%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-BkJWQBbMAB\">\u6279\u91cf\u63d2\u5165\u6578\u64da<\/h3>\n<p>\u9664\u4e86\u55ae\u689d\u8a18\u9304\u7684\u63d2\u5165\uff0cSQL\u9084\u652f\u6301\u6279\u91cf\u63d2\u5165\u6578\u64da\u3002\u9019\u53ef\u4ee5\u901a\u904e\u5728VALUES\u90e8\u5206\u63d0\u4f9b\u591a\u7d44\u503c\u4f86\u5be6\u73fe\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>INSERT INTO users (id, name, email)\nVALUES \n(2, '\u674e\u56db', 'lisi@example.com'),\n(3, '\u738b\u4e94', 'wangwu@example.com');<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u540c\u6642\u63d2\u5165\u5169\u500b\u65b0\u7528\u6236\u7684\u8a18\u9304\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8orm%e6%a1%86%e6%9e%b6%e6%b7%bb%e5%8a%a0%e6%95%b8%e6%93%9a-BkJWQBbMAB\">\u4f7f\u7528ORM\u6846\u67b6\u6dfb\u52a0\u6578\u64da<\/h2>\n<p>\u9664\u4e86\u76f4\u63a5\u4f7f\u7528SQL\u8a9e\u53e5\uff0c\u8a31\u591a\u958b\u767c\u8005\u9084\u9078\u64c7\u4f7f\u7528\u5c0d\u8c61\u95dc\u4fc2\u6620\u5c04\uff08ORM\uff09\u6846\u67b6\u4f86\u7c21\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u3002ORM\u5141\u8a31\u958b\u767c\u8005\u4f7f\u7528\u9ad8\u7d1a\u8a9e\u8a00\u4f86\u64cd\u4f5c\u6578\u64da\u5eab\uff0c\u800c\u4e0d\u5fc5\u76f4\u63a5\u7de8\u5bebSQL\u8a9e\u53e5\u3002\u4f8b\u5982\uff0c\u5728Python\u4e2d\u4f7f\u7528SQLAlchemy\uff0c\u53ef\u4ee5\u9019\u6a23\u6dfb\u52a0\u65b0\u8a18\u9304\uff1a<\/p>\n<pre><code>from sqlalchemy import create_engine\nfrom sqlalchemy.orm import sessionmaker\nfrom models import User  # \u5047\u8a2dUser\u662f\u5b9a\u7fa9\u7684\u6a21\u578b\n\nengine = create_engine('sqlite:\/\/\/example.db')\nSession = sessionmaker(bind=engine)\nsession = Session()\n\nnew_user = User(id=4, name='\u8d99\u516d', email='zhaoliu@example.com')\nsession.add(new_user)\nsession.commit()<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5275\u5efa\u4e86\u4e00\u500b\u65b0\u7684\u7528\u6236\u5c0d\u8c61\uff0c\u7136\u5f8c\u5c07\u5176\u6dfb\u52a0\u5230\u6703\u8a71\u4e2d\uff0c\u6700\u5f8c\u63d0\u4ea4\u66f4\u6539\u4ee5\u4fdd\u5b58\u5230\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-BkJWQBbMAB\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u6dfb\u52a0\u65b0\u6578\u64da\u8a18\u9304\u662f\u4e00\u500b\u57fa\u672c\u800c\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u7121\u8ad6\u662f\u4f7f\u7528SQL\u8a9e\u53e5\u9084\u662fORM\u6846\u67b6\uff0c\u4e86\u89e3\u5982\u4f55\u6b63\u78ba\u5730\u63d2\u5165\u6578\u64da\u90fd\u662f\u958b\u767c\u8005\u5fc5\u5099\u7684\u6280\u80fd\u3002\u901a\u904e\u672c\u6587\u7684\u4ecb\u7d39\uff0c\u5e0c\u671b\u80fd\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\uff0c\u7279\u5225\u662f\u6211\u5011\u63d0\u4f9b\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u6dfb\u52a0\u65b0\u6578\u64da\u8a18\u9304\uff0c\u5305\u62ec\u4f7f\u7528SQL\u8a9e\u53e5\u548c\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\u7684\u6b65\u9a5f\u8207\u6280\u5de7\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-187036","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187036","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=187036"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187036\/revisions"}],"predecessor-version":[{"id":187037,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187036\/revisions\/187037"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187036"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187036"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}