{"id":186112,"date":"2024-11-11T03:12:24","date_gmt":"2024-11-10T19:12:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186112\/"},"modified":"2024-11-11T03:12:25","modified_gmt":"2024-11-10T19:12:25","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e5%85%a5%e9%96%80%e5%8f%8a%e5%af%a6%e8%b8%90%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e5%9f%ba%e7%a4%8e%e4%bb%a5%e5%8f%8a%e5%af%a6%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186112\/","title":{"rendered":"\u6578\u64da\u5eab\u7de8\u7a0b\u5165\u9580\u53ca\u5be6\u8e10\uff08\u6578\u64da\u5eab\u7de8\u7a0b\u57fa\u790e\u4ee5\u53ca\u5be6\u4f8b\uff09"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e5%85%a5%e9%96%80%e5%8f%8a%e5%af%a6%e8%b8%90%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e5%9f%ba%e7%a4%8e%e4%bb%a5%e5%8f%8a%e5%af%a6%e4%be%8b-lvwBnaSpAe\">\u6578\u64da\u5eab\u7de8\u7a0b\u5165\u9580\u53ca\u5be6\u8e10\uff08\u6578\u64da\u5eab\u7de8\u7a0b\u57fa\u790e\u4ee5\u53ca\u5be6\u4f8b\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u4f4d\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7de8\u7a0b\u5df2\u6210\u70ba\u958b\u767c\u8005\u5fc5\u5099\u7684\u6280\u80fd\u4e4b\u4e00\u3002\u7121\u8ad6\u662f\u7db2\u7ad9\u958b\u767c\u3001\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\uff0c\u9084\u662f\u6578\u64da\u5206\u6790\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u90fd\u7121\u8655\u4e0d\u5728\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u6578\u64da\u5eab\u7de8\u7a0b\u7684\u57fa\u790e\u77e5\u8b58\u53ca\u5be6\u8e10\uff0c\u5e6b\u52a9\u8b80\u8005\u5efa\u7acb\u5c0d\u6578\u64da\u5eab\u7de8\u7a0b\u7684\u57fa\u672c\u7406\u89e3\u3002<\/p>\n<h2 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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-lvwBnaSpAe\">\u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<ul>\n<li><strong>\u6578\u64da\u5eab\uff08Database\uff09<\/strong>\uff1a\u4e00\u7d44\u6709\u7d44\u7e54\u7684\u6578\u64da\u96c6\u5408\uff0c\u901a\u5e38\u4ee5\u8868\u683c\u7684\u5f62\u5f0f\u5b58\u5132\u3002<\/li>\n<li><strong>\u8868\uff08Table\uff09<\/strong>\uff1a\u6578\u64da\u5eab\u4e2d\u7684\u57fa\u672c\u7d50\u69cb\uff0c\u5305\u542b\u884c\u548c\u5217\u3002\u6bcf\u4e00\u884c\u4ee3\u8868\u4e00\u689d\u8a18\u9304\uff0c\u6bcf\u4e00\u5217\u4ee3\u8868\u4e00\u500b\u5c6c\u6027\u3002<\/li>\n<li><strong>\u67e5\u8a62\uff08Query\uff09<\/strong>\uff1a\u7528\u65bc\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u6578\u64da\u7684\u8acb\u6c42\uff0c\u901a\u5e38\u4f7f\u7528 SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u4f86\u7de8\u5beb\u3002<\/li>\n<li><strong>\u7d22\u5f15\uff08Index\uff09<\/strong>\uff1a\u7528\u65bc\u52a0\u901f\u67e5\u8a62\u7684\u6578\u64da\u7d50\u69cb\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u6aa2\u7d22\u7684\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e8%a8%80%ef%bc%9asql-lvwBnaSpAe\">\u6578\u64da\u5eab\u7de8\u7a0b\u7684\u57fa\u672c\u8a9e\u8a00\uff1aSQL<\/h2>\n<p>SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u8207\u6578\u64da\u5eab\u4ea4\u4e92\u7684\u4e3b\u8981\u8a9e\u8a00\u3002\u5b83\u5141\u8a31\u7528\u6236\u5275\u5efa\u3001\u8b80\u53d6\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684 SQL \u8a9e\u53e5\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e5%89%b5%e5%bb%ba%e8%a1%a8-lvwBnaSpAe\">1. \u5275\u5efa\u8868<\/h3>\n<pre><code>CREATE TABLE users (\n    id INT PRIMARY KEY AUTO_INCREMENT,\n    name VARCHAR(100),\n    email VARCHAR(100)\n);<\/code><\/pre>\n<h3 id=\"2-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-lvwBnaSpAe\">2. \u63d2\u5165\u6578\u64da<\/h3>\n<pre><code>INSERT INTO users (name, email) VALUES ('\u5f35\u4e09', 'zhangsan@example.com');<\/code><\/pre>\n<h3 id=\"3-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-lvwBnaSpAe\">3. \u67e5\u8a62\u6578\u64da<\/h3>\n<pre><code>SELECT * FROM users WHERE name = '\u5f35\u4e09';<\/code><\/pre>\n<h3 id=\"4-%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a-lvwBnaSpAe\">4. \u66f4\u65b0\u6578\u64da<\/h3>\n<pre><code>UPDATE users SET email = 'newemail@example.com' WHERE name = '\u5f35\u4e09';<\/code><\/pre>\n<h3 id=\"5-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-lvwBnaSpAe\">5. \u522a\u9664\u6578\u64da<\/h3>\n<pre><code>DELETE FROM users WHERE name = '\u5f35\u4e09';<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e7%9a%84%e5%af%a6%e8%b8%90-lvwBnaSpAe\">\u6578\u64da\u5eab\u7de8\u7a0b\u7684\u5be6\u8e10<\/h2>\n<p>\u5728\u5b78\u7fd2\u6578\u64da\u5eab\u7de8\u7a0b\u6642\uff0c\u5be6\u8e10\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8b70\u7684\u5be6\u8e10\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u9078\u64c7\u4e00\u500b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71<\/strong>\uff1a\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684 DBMS\uff0c\u5982 MySQL \u6216 PostgreSQL\u3002<\/li>\n<li><strong>\u5b89\u88dd\u548c\u914d\u7f6e\u6578\u64da\u5eab<\/strong>\uff1a\u6839\u64da\u5b98\u65b9\u6587\u6a94\u9032\u884c\u5b89\u88dd\u548c\u914d\u7f6e\u3002<\/li>\n<li><strong>\u5275\u5efa\u6578\u64da\u5eab\u548c\u8868<\/strong>\uff1a\u4f7f\u7528 SQL \u8a9e\u53e5\u5275\u5efa\u6578\u64da\u5eab\u548c\u8868\u7d50\u69cb\u3002<\/li>\n<li><strong>\u9032\u884c\u6578\u64da\u64cd\u4f5c<\/strong>\uff1a\u5617\u8a66\u63d2\u5165\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\uff0c\u719f\u6089 SQL \u8a9e\u6cd5\u3002<\/li>\n<li><strong>\u5be6\u73fe\u4e00\u500b\u5c0f\u9805\u76ee<\/strong>\uff1a\u9078\u64c7\u4e00\u500b\u7c21\u55ae\u7684\u9805\u76ee\uff0c\u5982\u5716\u66f8\u7ba1\u7406\u7cfb\u7d71\uff0c\u5c07\u6240\u5b78\u7684\u77e5\u8b58\u61c9\u7528\u65bc\u5be6\u969b\u958b\u767c\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-lvwBnaSpAe\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u7de8\u7a0b\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\uff0c\u5c0d\u65bc\u5e0c\u671b\u5728\u6280\u8853\u9818\u57df\u767c\u5c55\u7684\u4eba\u4f86\u8aaa\uff0c\u638c\u63e1\u6578\u64da\u5eab\u7684\u57fa\u672c\u77e5\u8b58\u548c\u64cd\u4f5c\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u901a\u904e\u5b78\u7fd2 SQL \u548c\u5be6\u8e10\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u5229\u7528\u6578\u64da\uff0c\u70ba\u61c9\u7528\u7a0b\u5f0f\u7684\u958b\u767c\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7de8\u7a0b\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u4e26\u5e0c\u671b\u5c0b\u627e\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u9032\u884c\u5be6\u9a57\u548c\u958b\u767c\uff0cServer.HK 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