{"id":144079,"date":"2024-11-01T04:54:34","date_gmt":"2024-10-31T20:54:34","guid":{"rendered":"https:\/\/server.hk\/cnblog\/144079\/"},"modified":"2024-11-01T04:54:35","modified_gmt":"2024-10-31T20:54:35","slug":"sql-%e8%aa%9e%e8%a8%80%e7%84%a1%e6%b3%95%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%8c%e5%8f%aa%e8%83%bd%e7%94%a8%e6%96%bc%e6%93%8d%e4%bd%9c%e5%b7%b2%e5%ad%98%e5%9c%a8%e7%9a%84%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/144079\/","title":{"rendered":"SQL \u8a9e\u8a00\u7121\u6cd5\u5275\u5efa\u6578\u64da\u5eab\uff0c\u53ea\u80fd\u7528\u65bc\u64cd\u4f5c\u5df2\u5b58\u5728\u7684\u6578\u64da\u5eab\u3002 (sql \u8a9e\u8a00\u4e0d\u80fd\u5275\u5efa\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"sql-%e8%aa%9e%e8%a8%80%e7%84%a1%e6%b3%95%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%8c%e5%8f%aa%e8%83%bd%e7%94%a8%e6%96%bc%e6%93%8d%e4%bd%9c%e5%b7%b2%e5%ad%98%e5%9c%a8%e7%9a%84%e6%95%b8-EBbQZNPqSe\">SQL \u8a9e\u8a00\u7121\u6cd5\u5275\u5efa\u6578\u64da\u5eab\uff0c\u53ea\u80fd\u7528\u65bc\u64cd\u4f5c\u5df2\u5b58\u5728\u7684\u6578\u64da\u5eab<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cSQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u8a9e\u8a00\uff0c\u4e3b\u8981\u7528\u65bc\u67e5\u8a62\u548c\u64cd\u4f5c\u6578\u64da\u3002\u7136\u800c\uff0c\u5c0d\u65bc\u8a31\u591a\u521d\u5b78\u8005\u4f86\u8aaa\uff0c\u53ef\u80fd\u6703\u6709\u4e00\u500b\u8aa4\u89e3\uff0c\u5373 SQL \u8a9e\u8a00\u7121\u6cd5\u5275\u5efa\u6578\u64da\u5eab\uff0c\u53ea\u80fd\u7528\u65bc\u64cd\u4f5c\u5df2\u5b58\u5728\u7684\u6578\u64da\u5eab\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u4e00\u4e3b\u984c\uff0c\u4e26\u6f84\u6e05 SQL \u5728\u6578\u64da\u5eab\u5275\u5efa\u548c\u64cd\u4f5c\u4e2d\u7684\u5be6\u969b\u529f\u80fd\u3002<\/p>\n<h2 id=\"sql-%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8a%9f%e8%83%bd-EBbQZNPqSe\">SQL \u7684\u57fa\u672c\u529f\u80fd<\/h2>\n<p>SQL \u662f\u4e00\u7a2e\u5c08\u9580\u8a2d\u8a08\u7528\u65bc\u8207\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u7684\u8a9e\u8a00\u3002\u5b83\u7684\u4e3b\u8981\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u67e5\u8a62\u6578\u64da\uff08SELECT\uff09<\/li>\n<li>\u63d2\u5165\u6578\u64da\uff08INSERT\uff09<\/li>\n<li>\u66f4\u65b0\u6578\u64da\uff08UPDATE\uff09<\/li>\n<li>\u522a\u9664\u6578\u64da\uff08DELETE\uff09<\/li>\n<li>\u5275\u5efa\u548c\u4fee\u6539\u6578\u64da\u5eab\u7d50\u69cb\uff08CREATE\u3001ALTER\u3001DROP\uff09<\/li>\n<\/ul>\n<p>\u5f9e\u4e0a\u9762\u7684\u529f\u80fd\u53ef\u4ee5\u770b\u51fa\uff0cSQL \u4e0d\u50c5\u50c5\u662f\u7528\u65bc\u64cd\u4f5c\u5df2\u5b58\u5728\u7684\u6578\u64da\uff0c\u9084\u53ef\u4ee5\u7528\u65bc\u5275\u5efa\u548c\u4fee\u6539\u6578\u64da\u5eab\u53ca\u5176\u7d50\u69cb\u3002<\/p>\n<h2 id=\"%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84-sql-%e8%aa%9e%e5%8f%a5-EBbQZNPqSe\">\u5275\u5efa\u6578\u64da\u5eab\u7684 SQL \u8a9e\u53e5<\/h2>\n<p>\u5be6\u969b\u4e0a\uff0cSQL \u8a9e\u8a00\u63d0\u4f9b\u4e86\u5275\u5efa\u6578\u64da\u5eab\u7684\u529f\u80fd\u3002\u4f7f\u7528 <code>CREATE DATABASE<\/code> \u8a9e\u53e5\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5275\u5efa\u4e00\u500b\u65b0\u7684\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE DATABASE my_database;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u5275\u5efa\u4e00\u500b\u540d\u70ba <code>my_database<\/code> \u7684\u65b0\u6578\u64da\u5eab\u3002\u5275\u5efa\u6578\u64da\u5eab\u5f8c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 <code>USE<\/code> \u8a9e\u53e5\u4f86\u9078\u64c7\u8a72\u6578\u64da\u5eab\uff0c\u7136\u5f8c\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002<\/p>\n<pre><code>USE my_database;<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e7%9a%84%e7%af%84%e4%be%8b-EBbQZNPqSe\">\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u7bc4\u4f8b<\/h2>\n<p>\u5728\u5275\u5efa\u6578\u64da\u5eab\u5f8c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 SQL \u8a9e\u8a00\u9032\u884c\u5404\u7a2e\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u5275\u5efa\u4e00\u500b\u8868\u683c\u4e26\u63d2\u5165\u6578\u64da\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(100),\n    email VARCHAR(100)\n);\n\nINSERT INTO users (name, email) VALUES ('John Doe', 'john@example.com');<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u9996\u5148\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>users<\/code> \u7684\u8868\u683c\uff0c\u7136\u5f8c\u63d2\u5165\u4e86\u4e00\u689d\u7528\u6236\u6578\u64da\u3002\u9019\u4e9b\u64cd\u4f5c\u986f\u793a\u4e86 SQL \u5728\u6578\u64da\u5eab\u5275\u5efa\u548c\u6578\u64da\u64cd\u4f5c\u4e2d\u7684\u9748\u6d3b\u6027\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e8%aa%a4%e8%a7%a3-EBbQZNPqSe\">\u5e38\u898b\u8aa4\u89e3<\/h2>\n<p>\u6709\u4e9b\u4eba\u53ef\u80fd\u6703\u8a8d\u70ba SQL \u53ea\u80fd\u7528\u65bc\u64cd\u4f5c\u5df2\u5b58\u5728\u7684\u6578\u64da\u5eab\uff0c\u9019\u7a2e\u8aa4\u89e3\u53ef\u80fd\u6e90\u65bc\u5c0d SQL \u8a9e\u8a00\u7684\u7247\u9762\u7406\u89e3\u3002\u4e8b\u5be6\u4e0a\uff0cSQL \u7684\u529f\u80fd\u975e\u5e38\u5f37\u5927\uff0c\u80fd\u5920\u652f\u6301\u6578\u64da\u5eab\u7684\u5275\u5efa\u3001\u4fee\u6539\u548c\u522a\u9664\u7b49\u591a\u7a2e\u64cd\u4f5c\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u67d0\u4e9b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u53ef\u80fd\u6703\u9650\u5236\u7528\u6236\u7684\u6b0a\u9650\uff0c\u5c0e\u81f4\u7528\u6236\u7121\u6cd5\u5275\u5efa\u6578\u64da\u5eab\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u7528\u6236\u53ef\u80fd\u6703\u8aa4\u4ee5\u70ba SQL \u8a9e\u8a00\u672c\u8eab\u7121\u6cd5\u5275\u5efa\u6578\u64da\u5eab\uff0c\u4f46\u5be6\u969b\u4e0a\u662f\u6b0a\u9650\u554f\u984c\u6240\u81f4\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-EBbQZNPqSe\">\u7d50\u8ad6<\/h2>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0cSQL \u8a9e\u8a00\u4e0d\u50c5\u80fd\u5920\u64cd\u4f5c\u5df2\u5b58\u5728\u7684\u6578\u64da\u5eab\uff0c\u9084\u80fd\u5920\u5275\u5efa\u65b0\u7684\u6578\u64da\u5eab\u3002\u901a\u904e\u4f7f\u7528\u9069\u7576\u7684 SQL \u8a9e\u53e5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u7ba1\u7406\u6578\u64da\u5eab\u53ca\u5176\u7d50\u69cb\u3002\u4e86\u89e3 SQL \u7684\u5b8c\u6574\u529f\u80fd\u5c0d\u65bc\u4efb\u4f55\u5e0c\u671b\u5728\u6578\u64da\u5eab\u7ba1\u7406\u9818\u57df\u53d6\u5f97\u6210\u529f\u7684\u4eba\u4f86\u8aaa\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6216\u9700\u8981\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SQL 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