{"id":186976,"date":"2024-11-11T10:24:29","date_gmt":"2024-11-11T02:24:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186976\/"},"modified":"2024-11-11T10:24:30","modified_gmt":"2024-11-11T02:24:30","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%bc%95%e9%ac%86%e5%af%a6%e7%8f%be%e8%87%aa%e5%a2%9e%e5%ad%97%e6%ae%b5-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e6%ae%b5%e8%87%aa%e5%8b%95%e8%87%aa%e5%a2%9e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186976\/","title":{"rendered":"\u6578\u64da\u5eab\u8f15\u9b06\u5be6\u73fe\u81ea\u589e\u5b57\u6bb5 (\u6578\u64da\u5eab\u5b57\u6bb5\u81ea\u52d5\u81ea\u589e)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%bc%95%e9%ac%86%e5%af%a6%e7%8f%be%e8%87%aa%e5%a2%9e%e5%ad%97%e6%ae%b5-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e6%ae%b5%e8%87%aa%e5%8b%95%e8%87%aa%e5%a2%9e-LXyDnPZiQe\">\u6578\u64da\u5eab\u8f15\u9b06\u5be6\u73fe\u81ea\u589e\u5b57\u6bb5 (\u6578\u64da\u5eab\u5b57\u6bb5\u81ea\u52d5\u81ea\u589e)<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u81ea\u589e\u5b57\u6bb5\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u7279\u6027\u3002\u5b83\u80fd\u5920\u81ea\u52d5\u70ba\u6bcf\u4e00\u689d\u65b0\u63d2\u5165\u7684\u8a18\u9304\u751f\u6210\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u9019\u5c0d\u65bc\u6578\u64da\u7684\u7ba1\u7406\u548c\u67e5\u8a62\u90fd\u5177\u6709\u91cd\u8981\u610f\u7fa9\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\u5be6\u73fe\u81ea\u589e\u5b57\u6bb5\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e8%87%aa%e5%a2%9e%e5%ad%97%e6%ae%b5%e7%9a%84%e6%a6%82%e5%bf%b5-LXyDnPZiQe\">\u81ea\u589e\u5b57\u6bb5\u7684\u6982\u5ff5<\/h2>\n<p>\u81ea\u589e\u5b57\u6bb5\uff08Auto Increment Field\uff09\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u6578\u64da\u985e\u578b\uff0c\u901a\u5e38\u7528\u65bc\u4e3b\u9375\uff08Primary Key\uff09\u3002\u7576\u4e00\u689d\u65b0\u8a18\u9304\u88ab\u63d2\u5165\u5230\u6578\u64da\u8868\u4e2d\u6642\uff0c\u6578\u64da\u5eab\u6703\u81ea\u52d5\u70ba\u8a72\u5b57\u6bb5\u5206\u914d\u4e00\u500b\u552f\u4e00\u7684\u6574\u6578\u503c\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u624b\u52d5\u7ba1\u7406\u8b58\u5225\u78bc\u7684\u9ebb\u7169\u3002<\/p>\n<h2 id=\"%e5%9c%a8-mysql-%e4%b8%ad%e5%af%a6%e7%8f%be%e8%87%aa%e5%a2%9e%e5%ad%97%e6%ae%b5-LXyDnPZiQe\">\u5728 MySQL \u4e2d\u5be6\u73fe\u81ea\u589e\u5b57\u6bb5<\/h2>\n<p>\u5728 MySQL \u4e2d\uff0c\u5be6\u73fe\u81ea\u589e\u5b57\u6bb5\u975e\u5e38\u7c21\u55ae\u3002\u53ea\u9700\u5728\u5275\u5efa\u8868\u6642\u5c07\u67d0\u500b\u5b57\u6bb5\u8a2d\u7f6e\u70ba\u81ea\u589e\u5373\u53ef\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    username VARCHAR(50) NOT NULL,\n    email VARCHAR(100) NOT NULL\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c`id` \u5b57\u6bb5\u88ab\u8a2d\u7f6e\u70ba\u81ea\u589e\u4e3b\u9375\u3002\u6bcf\u7576\u63d2\u5165\u4e00\u689d\u65b0\u8a18\u9304\u6642\uff0c`id` \u7684\u503c\u6703\u81ea\u52d5\u589e\u52a0\uff0c\u7121\u9700\u624b\u52d5\u6307\u5b9a\u3002<\/p>\n<h2 id=\"%e5%9c%a8-postgresql-%e4%b8%ad%e5%af%a6%e7%8f%be%e8%87%aa%e5%a2%9e%e5%ad%97%e6%ae%b5-LXyDnPZiQe\">\u5728 PostgreSQL \u4e2d\u5be6\u73fe\u81ea\u589e\u5b57\u6bb5<\/h2>\n<p>PostgreSQL \u4f7f\u7528\u5e8f\u5217\uff08Sequence\uff09\u4f86\u5be6\u73fe\u81ea\u589e\u5b57\u6bb5\u3002\u53ef\u4ee5\u4f7f\u7528 `SERIAL` \u6578\u64da\u985e\u578b\u4f86\u5275\u5efa\u81ea\u589e\u5b57\u6bb5\u3002\u4ee5\u4e0b\u662f\u76f8\u61c9\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id SERIAL PRIMARY KEY,\n    username VARCHAR(50) NOT NULL,\n    email VARCHAR(100) NOT NULL\n);<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c`id` \u5b57\u6bb5\u88ab\u5b9a\u7fa9\u70ba `SERIAL`\uff0c\u9019\u610f\u5473\u8457\u6bcf\u6b21\u63d2\u5165\u65b0\u8a18\u9304\u6642\uff0cPostgreSQL \u6703\u81ea\u52d5\u751f\u6210\u4e00\u500b\u552f\u4e00\u7684\u6574\u6578\u503c\u3002<\/p>\n<h2 id=\"%e5%9c%a8-sql-server-%e4%b8%ad%e5%af%a6%e7%8f%be%e8%87%aa%e5%a2%9e%e5%ad%97%e6%ae%b5-LXyDnPZiQe\">\u5728 SQL Server \u4e2d\u5be6\u73fe\u81ea\u589e\u5b57\u6bb5<\/h2>\n<p>\u5728 SQL Server \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 `IDENTITY` \u5c6c\u6027\u4f86\u5be6\u73fe\u81ea\u589e\u5b57\u6bb5\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u8868\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id INT IDENTITY(1,1) PRIMARY KEY,\n    username NVARCHAR(50) NOT NULL,\n    email NVARCHAR(100) NOT NULL\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c`IDENTITY(1,1)` \u8868\u793a\u5f9e 1 \u958b\u59cb\uff0c\u6bcf\u6b21\u589e\u52a0 1\u3002<\/p>\n<h2 id=\"%e8%87%aa%e5%a2%9e%e5%ad%97%e6%ae%b5%e7%9a%84%e5%84%aa%e5%8b%a2-LXyDnPZiQe\">\u81ea\u589e\u5b57\u6bb5\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u552f\u4e00\u6027\uff1a<\/strong>\u81ea\u589e\u5b57\u6bb5\u78ba\u4fdd\u6bcf\u689d\u8a18\u9304\u90fd\u6709\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u907f\u514d\u4e86\u91cd\u8907\u7684\u554f\u984c\u3002<\/li>\n<li><strong>\u7c21\u5316\u64cd\u4f5c\uff1a<\/strong>\u958b\u767c\u8005\u7121\u9700\u624b\u52d5\u7ba1\u7406\u8b58\u5225\u78bc\uff0c\u6e1b\u5c11\u4e86\u51fa\u932f\u7684\u6a5f\u6703\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u81ea\u589e\u5b57\u6bb5\u901a\u5e38\u662f\u6574\u6578\u985e\u578b\uff0c\u67e5\u8a62\u6027\u80fd\u8f03\u9ad8\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-LXyDnPZiQe\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136\u81ea\u589e\u5b57\u6bb5\u6709\u5f88\u591a\u512a\u52e2\uff0c\u4f46\u5728\u4f7f\u7528\u6642\u4e5f\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u61c9\u907f\u514d\u624b\u52d5\u63d2\u5165\u81ea\u589e\u5b57\u6bb5\u7684\u503c\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u552f\u4e00\u6027\u7d04\u675f\u9055\u53cd\u3002<\/li>\n<li>\u5728\u6578\u64da\u522a\u9664\u5f8c\uff0c\u81ea\u589e\u5b57\u6bb5\u7684\u503c\u4e0d\u6703\u91cd\u65b0\u4f7f\u7528\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u8b58\u5225\u78bc\u7684\u201c\u7a7a\u6d1e\u201d\u3002<\/li>\n<li>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u4f7f\u7528\u81ea\u589e\u5b57\u6bb5\u53ef\u80fd\u6703\u5c0e\u81f4\u74f6\u9838\uff0c\u56e0\u70ba\u6240\u6709\u63d2\u5165\u64cd\u4f5c\u90fd\u9700\u8981\u8a2a\u554f\u540c\u4e00\u5e8f\u5217\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-LXyDnPZiQe\">\u7e3d\u7d50<\/h2>\n<p>\u81ea\u589e\u5b57\u6bb5\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7c21\u5316\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u3002\u7121\u8ad6\u662f\u5728 MySQL\u3001PostgreSQL \u9084\u662f SQL Server \u4e2d\uff0c\u5be6\u73fe\u81ea\u589e\u5b57\u6bb5\u90fd\u76f8\u5c0d\u7c21\u55ae\uff0c\u4e26\u4e14\u80fd\u5920\u63d0\u4f9b\u552f\u4e00\u6027\u548c\u6027\u80fd\u4e0a\u7684\u512a\u52e2\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u81ea\u589e\u5b57\u6bb5\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK 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