{"id":162971,"date":"2024-11-04T19:34:21","date_gmt":"2024-11-04T11:34:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162971\/"},"modified":"2024-11-04T19:34:22","modified_gmt":"2024-11-04T11:34:22","slug":"%e6%95%99%e6%82%a8%e4%bd%bf%e7%94%a8sql%e5%8f%83%e6%95%b8%e8%ae%8a%e9%87%8f%e4%be%86%e5%82%b3%e9%81%9e%e8%a8%98%e9%8c%84%e5%80%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162971\/","title":{"rendered":"\u6559\u60a8\u4f7f\u7528SQL\u53c3\u6578\u8b8a\u91cf\u4f86\u50b3\u905e\u8a18\u9304\u503c"},"content":{"rendered":"<h1 id=\"%e6%95%99%e6%82%a8%e4%bd%bf%e7%94%a8sql%e5%8f%83%e6%95%b8%e8%ae%8a%e9%87%8f%e4%be%86%e5%82%b3%e9%81%9e%e8%a8%98%e9%8c%84%e5%80%bc-VmidUFDpnt\">\u6559\u60a8\u4f7f\u7528SQL\u53c3\u6578\u8b8a\u91cf\u4f86\u50b3\u905e\u8a18\u9304\u503c<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cSQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u6700\u5e38\u7528\u7684\u8a9e\u8a00\u4e4b\u4e00\u3002\u7121\u8ad6\u662f\u9032\u884c\u6578\u64da\u67e5\u8a62\u3001\u66f4\u65b0\u9084\u662f\u522a\u9664\u64cd\u4f5c\uff0cSQL\u90fd\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528SQL\u53c3\u6578\u8b8a\u91cf\u4f86\u50b3\u905e\u8a18\u9304\u503c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afsql%e5%8f%83%e6%95%b8%e8%ae%8a%e9%87%8f%ef%bc%9f-VmidUFDpnt\">\u4ec0\u9ebc\u662fSQL\u53c3\u6578\u8b8a\u91cf\uff1f<\/h2>\n<p>SQL\u53c3\u6578\u8b8a\u91cf\u662f\u4e00\u7a2e\u5728SQL\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u4f54\u4f4d\u7b26\uff0c\u5141\u8a31\u958b\u767c\u8005\u5728\u57f7\u884c\u67e5\u8a62\u6642\u52d5\u614b\u5730\u50b3\u905e\u503c\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u67e5\u8a62\u7684\u9748\u6d3b\u6027\uff0c\u9084\u80fd\u6709\u6548\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\uff0c\u589e\u5f37\u6578\u64da\u5eab\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e4%bd%bf%e7%94%a8%e5%8f%83%e6%95%b8%e8%ae%8a%e9%87%8f%ef%bc%9f-VmidUFDpnt\">\u70ba\u4ec0\u9ebc\u4f7f\u7528\u53c3\u6578\u8b8a\u91cf\uff1f<\/h2>\n<ul>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u4f7f\u7528\u53c3\u6578\u8b8a\u91cf\u53ef\u4ee5\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\uff0c\u56e0\u70ba\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u4e0d\u6703\u76f4\u63a5\u62fc\u63a5\u5230SQL\u8a9e\u53e5\u4e2d\u3002<\/li>\n<li><strong>\u53ef\u8b80\u6027\uff1a<\/strong>\u53c3\u6578\u5316\u67e5\u8a62\u4f7f\u5f97SQL\u8a9e\u53e5\u66f4\u6613\u65bc\u95b1\u8b80\u548c\u7dad\u8b77\u3002<\/li>\n<li><strong>\u6027\u80fd\uff1a<\/strong>\u6578\u64da\u5eab\u53ef\u4ee5\u91cd\u8907\u4f7f\u7528\u5df2\u7de8\u8b6f\u7684\u67e5\u8a62\u8a08\u5283\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8sql%e5%8f%83%e6%95%b8%e8%ae%8a%e9%87%8f-VmidUFDpnt\">\u5982\u4f55\u4f7f\u7528SQL\u53c3\u6578\u8b8a\u91cf<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528SQL\u53c3\u6578\u8b8a\u91cf\u7684\u57fa\u672c\u6b65\u9a5f\uff0c\u9019\u88e1\u4ee5Python\u7684SQLite\u70ba\u4f8b\u9032\u884c\u8aaa\u660e\uff1a<\/p>\n<h3 id=\"1-%e9%80%a3%e6%8e%a5%e5%88%b0%e6%95%b8%e6%93%9a%e5%ba%ab-VmidUFDpnt\">1. \u9023\u63a5\u5230\u6578\u64da\u5eab<\/h3>\n<pre><code>import sqlite3\n\n# \u9023\u63a5\u5230\u6578\u64da\u5eab\nconn = sqlite3.connect('example.db')\ncursor = conn.cursor()<\/code><\/pre>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e8%a1%a8%e6%a0%bc%ef%bc%88%e5%a6%82%e6%9e%9c%e5%b0%9a%e6%9c%aa%e5%ad%98%e5%9c%a8%ef%bc%89-VmidUFDpnt\">2. \u5275\u5efa\u8868\u683c\uff08\u5982\u679c\u5c1a\u672a\u5b58\u5728\uff09<\/h3>\n<pre><code>cursor.execute('''\nCREATE TABLE IF NOT EXISTS users (\n    id INTEGER PRIMARY KEY,\n    name TEXT,\n    age INTEGER\n)\n''')\nconn.commit()<\/code><\/pre>\n<h3 id=\"3-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a%e6%99%82%e4%bd%bf%e7%94%a8%e5%8f%83%e6%95%b8%e8%ae%8a%e9%87%8f-VmidUFDpnt\">3. \u63d2\u5165\u6578\u64da\u6642\u4f7f\u7528\u53c3\u6578\u8b8a\u91cf<\/h3>\n<pre><code>name = 'Alice'\nage = 30\n\n# \u4f7f\u7528\u53c3\u6578\u8b8a\u91cf\u63d2\u5165\u6578\u64da\ncursor.execute('INSERT INTO users (name, age) VALUES (?, ?)', (name, age))\nconn.commit()<\/code><\/pre>\n<h3 id=\"4-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e6%99%82%e4%bd%bf%e7%94%a8%e5%8f%83%e6%95%b8%e8%ae%8a%e9%87%8f-VmidUFDpnt\">4. \u67e5\u8a62\u6578\u64da\u6642\u4f7f\u7528\u53c3\u6578\u8b8a\u91cf<\/h3>\n<pre><code>user_id = 1\n\n# \u4f7f\u7528\u53c3\u6578\u8b8a\u91cf\u67e5\u8a62\u6578\u64da\ncursor.execute('SELECT * FROM users WHERE id = ?', (user_id,))\nuser = cursor.fetchone()\nprint(user)<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-VmidUFDpnt\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u59cb\u7d42\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62\uff1a<\/strong>\u7121\u8ad6\u662f\u63d2\u5165\u3001\u66f4\u65b0\u9084\u662f\u67e5\u8a62\u64cd\u4f5c\uff0c\u90fd\u61c9\u4f7f\u7528\u53c3\u6578\u8b8a\u91cf\u4f86\u63d0\u9ad8\u5b89\u5168\u6027\u3002<\/li>\n<li><strong>\u907f\u514d\u4f7f\u7528\u5b57\u7b26\u4e32\u62fc\u63a5\uff1a<\/strong>\u76f4\u63a5\u62fc\u63a5\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u5230SQL\u8a9e\u53e5\u4e2d\u662f\u975e\u5e38\u5371\u96aa\u7684\uff0c\u61c9\u59cb\u7d42\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62\u3002<\/li>\n<li><strong>\u5b9a\u671f\u6aa2\u67e5\u548c\u66f4\u65b0\u6578\u64da\u5eab\uff1a<\/strong>\u4fdd\u6301\u6578\u64da\u5eab\u7684\u5065\u5eb7\u72c0\u614b\uff0c\u5b9a\u671f\u9032\u884c\u5099\u4efd\u548c\u7dad\u8b77\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-VmidUFDpnt\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528SQL\u53c3\u6578\u8b8a\u91cf\u4f86\u50b3\u905e\u8a18\u9304\u503c\u662f\u4e00\u7a2e\u5b89\u5168\u4e14\u9ad8\u6548\u7684\u505a\u6cd5\u3002\u901a\u904e\u53c3\u6578\u5316\u67e5\u8a62\uff0c\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\uff0c\u9084\u80fd\u6709\u6548\u9632\u6b62\u6f5b\u5728\u7684\u5b89\u5168\u98a8\u96aa\u3002\u7121\u8ad6\u60a8\u662f\u958b\u767c\u65b0\u61c9\u7528\u9084\u662f\u7dad\u8b77\u73fe\u6709\u7cfb\u7d71\uff0c\u638c\u63e1\u9019\u4e00\u6280\u8853\u90fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u4f01\u696d\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528SQL\u53c3\u6578\u8b8a\u91cf\u6709\u6548\u50b3\u905e\u8a18\u9304\u503c\uff0c\u63d0\u5347\u67e5\u8a62\u6548\u7387\u8207\u9748\u6d3b\u6027\uff0c\u7c21\u5316\u6578\u64da\u64cd\u4f5c\u904e\u7a0b\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-162971","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162971","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=162971"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162971\/revisions"}],"predecessor-version":[{"id":162972,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162971\/revisions\/162972"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}