{"id":162979,"date":"2024-11-04T19:38:19","date_gmt":"2024-11-04T11:38:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162979\/"},"modified":"2024-11-04T19:38:20","modified_gmt":"2024-11-04T11:38:20","slug":"%e6%95%99%e6%82%a8%e4%bd%bf%e7%94%a8uniqueidentifier%e9%81%b8%e5%8f%96sql-server%e4%b8%bb%e9%8d%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162979\/","title":{"rendered":"\u6559\u60a8\u4f7f\u7528UniqueIdentifier\u9078\u53d6SQL Server\u4e3b\u9375"},"content":{"rendered":"<h1 id=\"%e6%95%99%e6%82%a8%e4%bd%bf%e7%94%a8uniqueidentifier%e9%81%b8%e5%8f%96sql-server%e4%b8%bb%e9%8d%b5-XHejbpVPhV\">\u6559\u60a8\u4f7f\u7528UniqueIdentifier\u9078\u53d6SQL Server\u4e3b\u9375<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u8a2d\u8a08\u4e2d\uff0c\u9078\u64c7\u5408\u9069\u7684\u4e3b\u9375\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e3b\u9375\u4e0d\u50c5\u7528\u65bc\u552f\u4e00\u6a19\u8b58\u8cc7\u6599\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u548c\u6578\u64da\u5b8c\u6574\u6027\u3002SQL Server\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u985e\u578b\u4f5c\u70ba\u4e3b\u9375\uff0c\u5176\u4e2d<code>UniqueIdentifier<\/code>\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u9078\u64c7\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528<code>UniqueIdentifier<\/code>\u4f5c\u70baSQL Server\u7684\u4e3b\u9375\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u7bc4\u4f8b\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afuniqueidentifier%ef%bc%9f-XHejbpVPhV\">\u4ec0\u9ebc\u662fUniqueIdentifier\uff1f<\/h2>\n<p><code>UniqueIdentifier<\/code>\u662f\u4e00\u7a2e\u6578\u64da\u985e\u578b\uff0c\u7528\u65bc\u5b58\u5132\u5168\u7403\u552f\u4e00\u7684\u6a19\u8b58\u7b26\uff08GUID\uff09\u3002\u9019\u7a2e\u6a19\u8b58\u7b26\u753132\u500b\u5341\u516d\u9032\u5236\u6578\u5b57\u7d44\u6210\uff0c\u901a\u5e38\u4ee5\u4e94\u500b\u90e8\u5206\u7684\u5f62\u5f0f\u8868\u793a\uff0c\u4f8b\u5982\uff1a<code>550e8400-e29b-41d4-a716-446655440000<\/code>\u3002\u7531\u65bc\u5176\u552f\u4e00\u6027\uff0c<code>UniqueIdentifier<\/code>\u975e\u5e38\u9069\u5408\u7528\u4f5c\u4e3b\u9375\uff0c\u7279\u5225\u662f\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87uniqueidentifier%e4%bd%9c%e7%82%ba%e4%b8%bb%e9%8d%b5%ef%bc%9f-XHejbpVPhV\">\u70ba\u4ec0\u9ebc\u9078\u64c7UniqueIdentifier\u4f5c\u70ba\u4e3b\u9375\uff1f<\/h2>\n<ul>\n<li><strong>\u5168\u7403\u552f\u4e00\u6027\uff1a<\/strong>\u6bcf\u500b<code>UniqueIdentifier<\/code>\u90fd\u662f\u552f\u4e00\u7684\uff0c\u9019\u610f\u5473\u8457\u5373\u4f7f\u5728\u4e0d\u540c\u7684\u8cc7\u6599\u5eab\u4e2d\u4e5f\u4e0d\u6703\u767c\u751f\u885d\u7a81\u3002<\/li>\n<li><strong>\u5206\u4f48\u5f0f\u7cfb\u7d71\u7684\u652f\u6301\uff1a<\/strong>\u5728\u591a\u500b\u4f3a\u670d\u5668\u4e4b\u9593\u9032\u884c\u8cc7\u6599\u540c\u6b65\u6642\uff0c<code>UniqueIdentifier<\/code>\u80fd\u5920\u6709\u6548\u907f\u514d\u4e3b\u9375\u885d\u7a81\u3002<\/li>\n<li><strong>\u96b1\u79c1\u6027\uff1a<\/strong>\u8207\u81ea\u589e\u6574\u6578\u4e3b\u9375\u76f8\u6bd4\uff0c<code>UniqueIdentifier<\/code>\u4e0d\u6613\u88ab\u63a8\u6e2c\uff0c\u9019\u5728\u67d0\u4e9b\u61c9\u7528\u4e2d\u53ef\u4ee5\u63d0\u9ad8\u5b89\u5168\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8sql-server%e4%b8%ad%e4%bd%bf%e7%94%a8uniqueidentifier%e4%bd%9c%e7%82%ba%e4%b8%bb%e9%8d%b5-XHejbpVPhV\">\u5982\u4f55\u5728SQL Server\u4e2d\u4f7f\u7528UniqueIdentifier\u4f5c\u70ba\u4e3b\u9375<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u6b65\u9a5f\u4f86\u5275\u5efa\u4e00\u500b\u4f7f\u7528<code>UniqueIdentifier<\/code>\u4f5c\u70ba\u4e3b\u9375\u7684\u8cc7\u6599\u8868\uff1a<\/p>\n<pre><code>CREATE TABLE Users (\n    UserID UNIQUEIDENTIFIER DEFAULT NEWID() PRIMARY KEY,\n    UserName NVARCHAR(100) NOT NULL,\n    Email NVARCHAR(100) NOT NULL\n);<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba<code>Users<\/code>\u7684\u8cc7\u6599\u8868\uff0c\u5176\u4e2d<code>UserID<\/code>\u6b04\u4f4d\u88ab\u5b9a\u7fa9\u70ba<code>UniqueIdentifier<\/code>\u985e\u578b\uff0c\u4e26\u4f7f\u7528<code>NEWID()<\/code>\u51fd\u6578\u81ea\u52d5\u751f\u6210\u552f\u4e00\u7684\u8b58\u5225\u7b26\u3002\u9019\u6a23\uff0c\u6bcf\u7576\u63d2\u5165\u65b0\u8a18\u9304\u6642\uff0c<code>UserID<\/code>\u5c07\u81ea\u52d5\u586b\u5145\u4e00\u500b\u552f\u4e00\u7684GUID\u3002<\/p>\n<h2 id=\"%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a%e7%a4%ba%e4%be%8b-XHejbpVPhV\">\u63d2\u5165\u6578\u64da\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u5982\u4f55\u5411<code>Users<\/code>\u8cc7\u6599\u8868\u63d2\u5165\u6578\u64da\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>INSERT INTO Users (UserName, Email) \nVALUES ('Alice', 'alice@example.com'),\n       ('Bob', 'bob@example.com');<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u53ea\u9700\u63d0\u4f9b<code>UserName<\/code>\u548c<code>Email<\/code>\uff0c<code>UserID<\/code>\u5c07\u81ea\u52d5\u751f\u6210\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e7%a4%ba%e4%be%8b-XHejbpVPhV\">\u67e5\u8a62\u6578\u64da\u793a\u4f8b<\/h2>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u7d22<code>Users<\/code>\u8cc7\u6599\u8868\u4e2d\u7684\u6240\u6709\u8a18\u9304\uff1a<\/p>\n<pre><code>SELECT * FROM Users;<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-XHejbpVPhV\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u907f\u514d\u4f7f\u7528GUID\u4f5c\u70ba\u7d22\u5f15\uff1a<\/strong>\u7531\u65bc<code>UniqueIdentifier<\/code>\u7684\u96a8\u6a5f\u6027\uff0c\u4f7f\u7528\u5b83\u4f5c\u70ba\u7d22\u5f15\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u554f\u984c\u3002\u5efa\u8b70\u5728\u9700\u8981\u6642\u4f7f\u7528\u5176\u4ed6\u7d22\u5f15\u7b56\u7565\u3002<\/li>\n<li><strong>\u8003\u616e\u5b58\u5132\u7a7a\u9593\uff1a<\/strong><code>UniqueIdentifier<\/code>\u4f54\u752816\u500b\u5b57\u7bc0\u7684\u5b58\u5132\u7a7a\u9593\uff0c\u9019\u6bd4\u6574\u6578\u578b\u4e3b\u9375\u8981\u5927\uff0c\u56e0\u6b64\u5728\u8a2d\u8a08\u8cc7\u6599\u8868\u6642\u9700\u8003\u616e\u5b58\u5132\u9700\u6c42\u3002<\/li>\n<li><strong>\u4f7f\u7528NEWSEQUENTIALID()\uff1a<\/strong>\u5982\u679c\u60a8\u9700\u8981\u63d0\u9ad8\u63d2\u5165\u6027\u80fd\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528<code>NEWSEQUENTIALID()<\/code>\u51fd\u6578\uff0c\u5b83\u751f\u6210\u7684GUID\u662f\u9806\u5e8f\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u9801\u5206\u88c2\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-XHejbpVPhV\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528<code>UniqueIdentifier<\/code>\u4f5c\u70baSQL Server\u7684\u4e3b\u9375\u662f\u4e00\u500b\u6709\u6548\u7684\u9078\u64c7\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5168\u7403\u552f\u4e00\u6027\u548c\u5206\u4f48\u5f0f\u7cfb\u7d71\u652f\u6301\u7684\u60c5\u6cc1\u4e0b\u3002\u901a\u904e\u672c\u6587\u7684\u4ecb\u7d39\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u7406\u89e3\u5982\u4f55\u5728SQL Server\u4e2d\u5275\u5efa\u548c\u4f7f\u7528<code>UniqueIdentifier<\/code>\u4e3b\u9375\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u6280\u8853\u652f\u6301\u6216\u5c0b\u627e\u5408\u9069\u7684<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528UniqueIdentifier\u9078\u53d6SQL Server\u4e3b\u9375\uff0c\u63d0\u5347\u8cc7\u6599\u5eab\u8a2d\u8a08\u7684\u9748\u6d3b\u6027\u8207\u5b89\u5168\u6027\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-162979","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162979","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=162979"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162979\/revisions"}],"predecessor-version":[{"id":162980,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162979\/revisions\/162980"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162979"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162979"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}