{"id":179824,"date":"2024-11-09T05:06:17","date_gmt":"2024-11-08T21:06:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179824\/"},"modified":"2024-11-09T05:06:18","modified_gmt":"2024-11-08T21:06:18","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%89%b5%e5%bb%ba%e5%92%8c%e7%ae%a1%e7%90%86%e7%94%a8%e6%88%b6-id%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab-%e7%94%a8%e6%88%b6-id","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179824\/","title":{"rendered":"\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u548c\u7ba1\u7406\u7528\u6236 ID\uff1f (\u6578\u64da\u5eab \u7528\u6236 id)"},"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%89%b5%e5%bb%ba%e5%92%8c%e7%ae%a1%e7%90%86%e7%94%a8%e6%88%b6-id%ef%bc%9f-vZCtFTaDzG\">\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u548c\u7ba1\u7406\u7528\u6236 ID\uff1f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u5b57\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u7528\u6236\u8eab\u4efd\u7684\u7ba1\u7406\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7528\u6236 ID \u662f\u7528\u65bc\u552f\u4e00\u6a19\u8b58\u6bcf\u500b\u7528\u6236\u7684\u95dc\u9375\u5143\u7d20\uff0c\u7121\u8ad6\u662f\u5728\u7db2\u7ad9\u3001\u61c9\u7528\u7a0b\u5e8f\u9084\u662f\u5176\u4ed6\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u548c\u7ba1\u7406\u7528\u6236 ID\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e7%94%a8%e6%88%b6-id-%e7%9a%84%e9%87%8d%e8%a6%81%e6%80%a7-vZCtFTaDzG\">\u7528\u6236 ID \u7684\u91cd\u8981\u6027<\/h2>\n<p>\u7528\u6236 ID \u662f\u4e00\u500b\u552f\u4e00\u7684\u6a19\u8b58\u7b26\uff0c\u7528\u65bc\u5340\u5206\u4e0d\u540c\u7684\u7528\u6236\u3002\u5b83\u5728\u6578\u64da\u5eab\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u548c\u7ba1\u7406\u54e1\u6709\u6548\u5730\u7ba1\u7406\u7528\u6236\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u7528\u6236 ID \u7684\u5e7e\u500b\u4e3b\u8981\u529f\u80fd\uff1a<\/p>\n<ul>\n<li><strong>\u552f\u4e00\u6027\uff1a<\/strong>\u6bcf\u500b\u7528\u6236\u90fd\u61c9\u8a72\u6709\u4e00\u500b\u552f\u4e00\u7684 ID\uff0c\u4ee5\u907f\u514d\u6578\u64da\u6df7\u6dc6\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u7528\u6236 ID \u53ef\u4ee5\u7528\u65bc\u9a57\u8b49\u548c\u6388\u6b0a\uff0c\u78ba\u4fdd\u53ea\u6709\u6388\u6b0a\u7528\u6236\u53ef\u4ee5\u8a2a\u554f\u7279\u5b9a\u8cc7\u6e90\u3002<\/li>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\uff1a<\/strong>\u901a\u904e\u4f7f\u7528\u7528\u6236 ID\uff0c\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%89%b5%e5%bb%ba%e7%94%a8%e6%88%b6-id-%e7%9a%84%e6%96%b9%e6%b3%95-vZCtFTaDzG\">\u5275\u5efa\u7528\u6236 ID \u7684\u65b9\u6cd5<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u7528\u6236 ID \u901a\u5e38\u6709\u5e7e\u7a2e\u65b9\u6cd5\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u5be6\u73fe\u65b9\u5f0f\uff1a<\/p>\n<h3 id=\"1-%e8%87%aa%e5%a2%9e-id-vZCtFTaDzG\">1. \u81ea\u589e ID<\/h3>\n<p>\u6700\u5e38\u898b\u7684\u65b9\u5f0f\u662f\u4f7f\u7528\u81ea\u589e ID\u3002\u9019\u610f\u5473\u8457\u6bcf\u7576\u63d2\u5165\u4e00\u500b\u65b0\u7528\u6236\u6642\uff0c\u6578\u64da\u5eab\u6703\u81ea\u52d5\u751f\u6210\u4e00\u500b\u552f\u4e00\u7684 ID\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 SQL \u5275\u5efa\u81ea\u589e ID \u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    username VARCHAR(255) NOT NULL,\n    email VARCHAR(255) NOT NULL\n);<\/code><\/pre>\n<h3 id=\"2-uuid%ef%bc%88%e9%80%9a%e7%94%a8%e5%94%af%e4%b8%80%e8%ad%98%e5%88%a5%e7%a2%bc%ef%bc%89-vZCtFTaDzG\">2. UUID\uff08\u901a\u7528\u552f\u4e00\u8b58\u5225\u78bc\uff09<\/h3>\n<p>\u53e6\u4e00\u7a2e\u65b9\u6cd5\u662f\u4f7f\u7528 UUID\u3002UUID \u662f\u4e00\u7a2e\u6a19\u6e96\u7684\u8b58\u5225\u78bc\u683c\u5f0f\uff0c\u80fd\u5920\u5728\u4e0d\u540c\u7684\u7cfb\u7d71\u4e2d\u4fdd\u6301\u552f\u4e00\u6027\u3002\u4ee5\u4e0b\u662f\u751f\u6210 UUID \u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id CHAR(36) PRIMARY KEY,\n    username VARCHAR(255) NOT NULL,\n    email VARCHAR(255) NOT NULL\n);\n\nINSERT INTO users (id, username, email) VALUES (UUID(), 'user1', 'user1@example.com');<\/code><\/pre>\n<h2 id=\"%e7%ae%a1%e7%90%86%e7%94%a8%e6%88%b6-id-vZCtFTaDzG\">\u7ba1\u7406\u7528\u6236 ID<\/h2>\n<p>\u5275\u5efa\u7528\u6236 ID \u53ea\u662f\u7b2c\u4e00\u6b65\uff0c\u7ba1\u7406\u9019\u4e9b ID \u540c\u6a23\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u7ba1\u7406\u7528\u6236 ID \u7684\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<h3 id=\"1-%e5%ae%9a%e6%9c%9f%e5%af%a9%e6%a0%b8-vZCtFTaDzG\">1. \u5b9a\u671f\u5be9\u6838<\/h3>\n<p>\u5b9a\u671f\u5be9\u6838\u7528\u6236 ID \u53ef\u4ee5\u5e6b\u52a9\u767c\u73fe\u91cd\u8907\u6216\u7121\u6548\u7684 ID\u3002\u9019\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u6578\u64da\u5eab\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>SELECT id, COUNT(*) \nFROM users \nGROUP BY id \nHAVING COUNT(*) &gt; 1;<\/code><\/pre>\n<h3 id=\"2-%e6%95%b8%e6%93%9a%e5%82%99%e4%bb%bd-vZCtFTaDzG\">2. \u6578\u64da\u5099\u4efd<\/h3>\n<p>\u78ba\u4fdd\u5b9a\u671f\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002\u9019\u5c0d\u65bc\u7528\u6236 ID \u7684\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\uff0c\u56e0\u70ba\u4e1f\u5931\u7528\u6236 ID \u53ef\u80fd\u6703\u5c0e\u81f4\u7528\u6236\u7121\u6cd5\u8a2a\u554f\u5176\u5e33\u6236\u3002<\/p>\n<h3 id=\"3-%e5%ae%89%e5%85%a8%e6%80%a7%e6%8e%aa%e6%96%bd-vZCtFTaDzG\">3. \u5b89\u5168\u6027\u63aa\u65bd<\/h3>\n<p>\u5be6\u65bd\u5b89\u5168\u6027\u63aa\u65bd\u4ee5\u4fdd\u8b77\u7528\u6236 ID \u514d\u53d7\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u3002\u9019\u53ef\u4ee5\u5305\u62ec\u52a0\u5bc6\u7528\u6236 ID \u548c\u4f7f\u7528\u5b89\u5168\u7684\u8eab\u4efd\u9a57\u8b49\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-vZCtFTaDzG\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u548c\u7ba1\u7406\u7528\u6236 ID \u662f\u4e00\u500b\u81f3\u95dc\u91cd\u8981\u7684\u904e\u7a0b\uff0c\u6d89\u53ca\u5230\u6578\u64da\u7684\u552f\u4e00\u6027\u3001\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\u3002\u901a\u904e\u4f7f\u7528\u81ea\u589e ID \u6216 UUID\uff0c\u4e26\u9075\u5faa\u6700\u4f73\u5be6\u8e10\u4f86\u7ba1\u7406\u9019\u4e9b ID\uff0c\u60a8\u53ef\u4ee5\u78ba\u4fdd\u7528\u6236\u6578\u64da\u7684\u5b89\u5168\u548c\u53ef\u9760\u6027\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\u7ba1\u7406\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u548c\u7ba1\u7406\u7528\u6236 ID\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u6027\u548c\u6709\u6548\u6027\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u548c\u7cfb\u7d71\u6027\u80fd\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-179824","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179824","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=179824"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179824\/revisions"}],"predecessor-version":[{"id":179825,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179824\/revisions\/179825"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}