{"id":179856,"date":"2024-11-09T05:22:18","date_gmt":"2024-11-08T21:22:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179856\/"},"modified":"2024-11-09T05:22:19","modified_gmt":"2024-11-08T21:22:19","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%8a%a0%e5%85%a5%e4%b8%bb%e9%8d%b5%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8a%a0%e4%b8%bb%e9%8d%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179856\/","title":{"rendered":"\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u52a0\u5165\u4e3b\u9375\uff1f (\u6578\u64da\u5eab\u52a0\u4e3b\u9375)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%8a%a0%e5%85%a5%e4%b8%bb%e9%8d%b5%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8a%a0%e4%b8%bb%e9%8d%b5-UNLtyjttuD\">\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u52a0\u5165\u4e3b\u9375\uff1f (\u6578\u64da\u5eab\u52a0\u4e3b\u9375)<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\uff0c\u4e3b\u9375\u662f\u6bcf\u500b\u8868\u683c\u4e2d\u6700\u91cd\u8981\u7684\u5143\u7d20\u4e4b\u4e00\u3002\u4e3b\u9375\u7684\u4e3b\u8981\u529f\u80fd\u662f\u552f\u4e00\u6a19\u8b58\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u6578\u64da\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u52a0\u5165\u4e3b\u9375\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%b8%bb%e9%8d%b5%ef%bc%9f-UNLtyjttuD\">\u4ec0\u9ebc\u662f\u4e3b\u9375\uff1f<\/h2>\n<p>\u4e3b\u9375\u662f\u4e00\u500b\u6216\u591a\u500b\u5217\u7684\u7d44\u5408\uff0c\u5176\u503c\u5728\u8868\u4e2d\u662f\u552f\u4e00\u7684\uff0c\u4e26\u4e14\u4e0d\u80fd\u70ba\u7a7a\u3002\u4e3b\u9375\u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u552f\u4e00\u6027\uff1a\u4e3b\u9375\u7684\u6bcf\u500b\u503c\u5fc5\u9808\u662f\u552f\u4e00\u7684\uff0c\u9019\u6a23\u624d\u80fd\u6b63\u78ba\u8b58\u5225\u6bcf\u4e00\u884c\u6578\u64da\u3002<\/li>\n<li>\u975e\u7a7a\u6027\uff1a\u4e3b\u9375\u5217\u4e0d\u80fd\u5305\u542b\u7a7a\u503c\uff0c\u9019\u662f\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u7684\u5fc5\u8981\u689d\u4ef6\u3002<\/li>\n<li>\u7a69\u5b9a\u6027\uff1a\u4e3b\u9375\u7684\u503c\u61c9\u8a72\u5728\u6578\u64da\u7684\u751f\u547d\u5468\u671f\u5167\u4fdd\u6301\u4e0d\u8b8a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%b7%bb%e5%8a%a0%e4%b8%bb%e9%8d%b5-UNLtyjttuD\">\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u6dfb\u52a0\u4e3b\u9375<\/h2>\n<p>\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6dfb\u52a0\u4e3b\u9375\u7684\u8a9e\u6cd5\u53ef\u80fd\u6703\u6709\u6240\u4e0d\u540c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\u6dfb\u52a0\u4e3b\u9375\u7684\u793a\u4f8b\u3002<\/p>\n<h3 id=\"1-%e5%9c%a8-mysql-%e4%b8%ad%e6%b7%bb%e5%8a%a0%e4%b8%bb%e9%8d%b5-UNLtyjttuD\">1. \u5728 MySQL \u4e2d\u6dfb\u52a0\u4e3b\u9375<\/h3>\n<p>\u5728 MySQL \u4e2d\uff0c\u53ef\u4ee5\u5728\u5275\u5efa\u8868\u6642\u6307\u5b9a\u4e3b\u9375\uff0c\u6216\u8005\u5728\u8868\u5275\u5efa\u5f8c\u4f7f\u7528 ALTER TABLE \u8a9e\u53e5\u6dfb\u52a0\u4e3b\u9375\u3002<\/p>\n<pre><code>-- \u5275\u5efa\u8868\u6642\u6307\u5b9a\u4e3b\u9375\nCREATE TABLE users (\n    id INT NOT NULL,\n    username VARCHAR(50) NOT NULL,\n    email VARCHAR(100),\n    PRIMARY KEY (id)\n);\n\n-- \u5728\u5df2\u5b58\u5728\u7684\u8868\u4e2d\u6dfb\u52a0\u4e3b\u9375\nALTER TABLE users\nADD PRIMARY KEY (id);\n<\/code><\/pre>\n<h3 id=\"2-%e5%9c%a8-postgresql-%e4%b8%ad%e6%b7%bb%e5%8a%a0%e4%b8%bb%e9%8d%b5-UNLtyjttuD\">2. \u5728 PostgreSQL \u4e2d\u6dfb\u52a0\u4e3b\u9375<\/h3>\n<p>PostgreSQL \u7684\u8a9e\u6cd5\u8207 MySQL \u985e\u4f3c\uff0c\u540c\u6a23\u53ef\u4ee5\u5728\u5275\u5efa\u8868\u6642\u6216\u4f7f\u7528 ALTER TABLE \u8a9e\u53e5\u4f86\u6dfb\u52a0\u4e3b\u9375\u3002<\/p>\n<pre><code>-- \u5275\u5efa\u8868\u6642\u6307\u5b9a\u4e3b\u9375\nCREATE TABLE users (\n    id SERIAL PRIMARY KEY,\n    username VARCHAR(50) NOT NULL,\n    email VARCHAR(100)\n);\n\n-- \u5728\u5df2\u5b58\u5728\u7684\u8868\u4e2d\u6dfb\u52a0\u4e3b\u9375\nALTER TABLE users\nADD CONSTRAINT users_pkey PRIMARY KEY (id);\n<\/code><\/pre>\n<h3 id=\"3-%e5%9c%a8-sql-server-%e4%b8%ad%e6%b7%bb%e5%8a%a0%e4%b8%bb%e9%8d%b5-UNLtyjttuD\">3. \u5728 SQL Server \u4e2d\u6dfb\u52a0\u4e3b\u9375<\/h3>\n<p>\u5728 SQL Server \u4e2d\uff0c\u6dfb\u52a0\u4e3b\u9375\u7684\u65b9\u5f0f\u4e5f\u76f8\u4f3c\uff0c\u53ef\u4ee5\u5728\u5275\u5efa\u8868\u6642\u6216\u4f7f\u7528 ALTER TABLE \u8a9e\u53e5\u3002<\/p>\n<pre><code>-- \u5275\u5efa\u8868\u6642\u6307\u5b9a\u4e3b\u9375\nCREATE TABLE users (\n    id INT NOT NULL PRIMARY KEY,\n    username NVARCHAR(50) NOT NULL,\n    email NVARCHAR(100)\n);\n\n-- \u5728\u5df2\u5b58\u5728\u7684\u8868\u4e2d\u6dfb\u52a0\u4e3b\u9375\nALTER TABLE users\nADD CONSTRAINT PK_Users PRIMARY KEY (id);\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-UNLtyjttuD\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u4e3b\u9375\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u9078\u64c7\u4e3b\u9375\u6642\u9700\u8981\u8003\u616e\u7684\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li>\u9078\u64c7\u4e00\u500b\u4e0d\u6703\u8b8a\u5316\u7684\u5217\u4f5c\u70ba\u4e3b\u9375\uff0c\u4f8b\u5982\u81ea\u589e\u7684 ID \u5217\u3002<\/li>\n<li>\u907f\u514d\u4f7f\u7528\u53ef\u8b8a\u7684\u6578\u64da\u4f5c\u70ba\u4e3b\u9375\uff0c\u4f8b\u5982\u7528\u6236\u540d\u6216\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff0c\u56e0\u70ba\u9019\u4e9b\u6578\u64da\u53ef\u80fd\u6703\u6539\u8b8a\u3002<\/li>\n<li>\u78ba\u4fdd\u4e3b\u9375\u7684\u5217\u6578\u64da\u985e\u578b\u80fd\u5920\u652f\u6301\u8db3\u5920\u7684\u552f\u4e00\u503c\uff0c\u4ee5\u907f\u514d\u672a\u4f86\u7684\u885d\u7a81\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-UNLtyjttuD\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u6dfb\u52a0\u4e3b\u9375\u662f\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u548c\u552f\u4e00\u6027\u7684\u95dc\u9375\u6b65\u9a5f\u3002\u7121\u8ad6\u662f\u5728 MySQL\u3001PostgreSQL \u9084\u662f SQL Server \u4e2d\uff0c\u6dfb\u52a0\u4e3b\u9375\u7684\u904e\u7a0b\u90fd\u76f8\u5c0d\u7c21\u55ae\u3002\u9078\u64c7\u5408\u9069\u7684\u4e3b\u9375\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u7ba1\u7406\u6027\uff0c\u9084\u80fd\u589e\u5f37\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u6258\u7ba1\u60a8\u7684\u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u6dfb\u52a0\u4e3b\u9375\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u552f\u4e00\u6027\u548c\u5b8c\u6574\u6027\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\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-179856","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179856","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=179856"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179856\/revisions"}],"predecessor-version":[{"id":179857,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179856\/revisions\/179857"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}