{"id":66113,"date":"2024-10-14T14:36:15","date_gmt":"2024-10-14T06:36:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/66113\/"},"modified":"2024-10-14T14:36:15","modified_gmt":"2024-10-14T06:36:15","slug":"mssql%e5%af%a6%e7%8f%be%e8%87%aa%e5%8b%95%e7%b7%a8%e8%99%9f%e5%8a%9f%e8%83%bd%ef%bc%88mssql%e8%87%aa%e5%8b%95%e7%b7%a8%e8%99%9f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/66113\/","title":{"rendered":"MSSQL\u5be6\u73fe\u81ea\u52d5\u7de8\u865f\u529f\u80fd\uff08mssql\u81ea\u52d5\u7de8\u865f\uff09"},"content":{"rendered":"<h1 id=\"mssql%e5%af%a6%e7%8f%be%e8%87%aa%e5%8b%95%e7%b7%a8%e8%99%9f%e5%8a%9f%e8%83%bd%ef%bc%88mssql%e8%87%aa%e5%8b%95%e7%b7%a8%e8%99%9f%ef%bc%89-qbFowlyzWz\">MSSQL\u5be6\u73fe\u81ea\u52d5\u7de8\u865f\u529f\u80fd\uff08mssql\u81ea\u52d5\u7de8\u865f\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u81ea\u52d5\u7de8\u865f\u529f\u80fd\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u7279\u6027\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002Microsoft SQL Server\uff08MSSQL\uff09\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u81ea\u52d5\u7de8\u865f\uff0c\u9019\u5c0d\u65bc\u78ba\u4fdd\u6578\u64da\u7684\u552f\u4e00\u6027\u548c\u5b8c\u6574\u6027\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMSSQL\u4e2d\u7684\u81ea\u52d5\u7de8\u865f\u529f\u80fd\uff0c\u5305\u62ec\u5176\u5be6\u73fe\u65b9\u5f0f\u3001\u4f7f\u7528\u5834\u666f\u53ca\u7bc4\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e8%87%aa%e5%8b%95%e7%b7%a8%e8%99%9f%e7%9a%84%e6%a6%82%e5%bf%b5-qbFowlyzWz\">\u81ea\u52d5\u7de8\u865f\u7684\u6982\u5ff5<\/h2>\n<p>\u81ea\u52d5\u7de8\u865f\u662f\u6307\u5728\u63d2\u5165\u65b0\u8a18\u9304\u6642\uff0c\u7cfb\u7d71\u81ea\u52d5\u751f\u6210\u4e00\u500b\u552f\u4e00\u7684\u6578\u5b57\uff0c\u901a\u5e38\u7528\u65bc\u4e3b\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u624b\u52d5\u8f38\u5165\u7de8\u865f\u6240\u5e36\u4f86\u7684\u932f\u8aa4\uff0c\u4e26\u78ba\u4fdd\u6bcf\u689d\u8a18\u9304\u90fd\u6709\u4e00\u500b\u552f\u4e00\u7684\u6a19\u8b58\u7b26\u3002<\/p>\n<h2 id=\"mssql%e4%b8%ad%e7%9a%84%e8%87%aa%e5%8b%95%e7%b7%a8%e8%99%9f%e5%af%a6%e7%8f%be%e6%96%b9%e5%bc%8f-qbFowlyzWz\">MSSQL\u4e2d\u7684\u81ea\u52d5\u7de8\u865f\u5be6\u73fe\u65b9\u5f0f<\/h2>\n<p>MSSQL\u63d0\u4f9b\u4e86\u5e7e\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u81ea\u52d5\u7de8\u865f\uff0c\u6700\u5e38\u898b\u7684\u6709\u4ee5\u4e0b\u5169\u7a2e\uff1a<\/p>\n<ul>\n<li><strong>IDENTITY\u5c6c\u6027<\/strong><\/li>\n<li><strong>SEQUENCE\u5c0d\u8c61<\/strong><\/li>\n<\/ul>\n<h3 id=\"1-identity%e5%b1%ac%e6%80%a7-qbFowlyzWz\">1. IDENTITY\u5c6c\u6027<\/h3>\n<p>\u5728\u5275\u5efa\u8868\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528IDENTITY\u5c6c\u6027\u4f86\u5b9a\u7fa9\u4e00\u500b\u81ea\u52d5\u589e\u9577\u7684\u5217\u3002\u9019\u662f\u6700\u5e38\u7528\u7684\u81ea\u52d5\u7de8\u865f\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528IDENTITY\u5c6c\u6027\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE Customers (\n    CustomerID INT IDENTITY(1,1) PRIMARY KEY,\n    CustomerName NVARCHAR(100),\n    ContactName NVARCHAR(100),\n    Country NVARCHAR(50)\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0cCustomerID\u5217\u88ab\u8a2d\u7f6e\u70ba\u81ea\u52d5\u589e\u9577\uff0c\u521d\u59cb\u503c\u70ba1\uff0c\u6bcf\u6b21\u63d2\u5165\u65b0\u8a18\u9304\u6642\u81ea\u52d5\u589e\u52a01\u3002<\/p>\n<h3 id=\"2-sequence%e5%b0%8d%e8%b1%a1-qbFowlyzWz\">2. SEQUENCE\u5c0d\u8c61<\/h3>\n<p>SEQUENCE\u662f\u4e00\u7a2e\u7368\u7acb\u65bc\u8868\u7684\u5c0d\u8c61\uff0c\u53ef\u4ee5\u5728\u591a\u500b\u8868\u4e2d\u5171\u4eab\u3002\u9019\u4f7f\u5f97\u5b83\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u66f4\u5177\u9748\u6d3b\u6027\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SEQUENCE\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>CREATE SEQUENCE CustomerSeq\n    START WITH 1\n    INCREMENT BY 1;\n\nCREATE TABLE Customers (\n    CustomerID INT PRIMARY KEY DEFAULT NEXT VALUE FOR CustomerSeq,\n    CustomerName NVARCHAR(100),\n    ContactName NVARCHAR(100),\n    Country NVARCHAR(50)\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0cCustomerID\u5217\u7684\u503c\u5c07\u5f9eCustomerSeq\u5e8f\u5217\u4e2d\u7372\u53d6\uff0c\u9019\u6a23\u53ef\u4ee5\u5728\u591a\u500b\u8868\u4e2d\u4f7f\u7528\u540c\u4e00\u5e8f\u5217\u4f86\u751f\u6210\u552f\u4e00\u7684\u7de8\u865f\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%a0%b4%e6%99%af-qbFowlyzWz\">\u4f7f\u7528\u5834\u666f<\/h2>\n<p>\u81ea\u52d5\u7de8\u865f\u529f\u80fd\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u7528\u6236\u7ba1\u7406\u7cfb\u7d71\uff1a\u70ba\u6bcf\u500b\u7528\u6236\u751f\u6210\u552f\u4e00\u7684ID\u3002<\/li>\n<li>\u8a02\u55ae\u7ba1\u7406\u7cfb\u7d71\uff1a\u70ba\u6bcf\u500b\u8a02\u55ae\u751f\u6210\u552f\u4e00\u7684\u8a02\u55ae\u865f\u3002<\/li>\n<li>\u7522\u54c1\u5eab\u5b58\u7ba1\u7406\uff1a\u70ba\u6bcf\u500b\u7522\u54c1\u751f\u6210\u552f\u4e00\u7684\u7522\u54c1\u7de8\u865f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-qbFowlyzWz\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528\u81ea\u52d5\u7de8\u865f\u529f\u80fd\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>IDENTITY\u5c6c\u6027\u5728\u522a\u9664\u8a18\u9304\u5f8c\u4e0d\u6703\u91cd\u65b0\u4f7f\u7528\u5df2\u522a\u9664\u7684\u7de8\u865f\u3002<\/li>\n<li>SEQUENCE\u5c0d\u8c61\u53ef\u4ee5\u5728\u591a\u500b\u8868\u4e2d\u5171\u4eab\uff0c\u4f46\u9700\u8981\u5c0f\u5fc3\u7ba1\u7406\u4ee5\u907f\u514d\u7de8\u865f\u885d\u7a81\u3002<\/li>\n<li>\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u8003\u616e\u6027\u80fd\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-qbFowlyzWz\">\u7e3d\u7d50<\/h2>\n<p>MSSQL\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u81ea\u52d5\u7de8\u865f\u529f\u80fd\uff0c\u7121\u8ad6\u662f\u901a\u904eIDENTITY\u5c6c\u6027\u9084\u662fSEQUENCE\u5c0d\u8c61\uff0c\u90fd\u80fd\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u7684\u552f\u4e00\u6027\u3002\u9019\u4e9b\u529f\u80fd\u5728\u5404\u7a2e\u61c9\u7528\u5834\u666f\u4e2d\u90fd\u80fd\u767c\u63ee\u91cd\u8981\u4f5c\u7528\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u7c21\u5316\u6578\u64da\u7ba1\u7406\u6d41\u7a0b\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684MSSQL\u6578\u64da\u5eab\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728MSSQL\u4e2d\u5be6\u73fe\u81ea\u52d5\u7de8\u865f\u529f\u80fd\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff0c\u63d0\u5347\u6548\u7387\uff0c\u78ba\u4fdd\u552f\u4e00\u6027\u8207\u4e00\u81f4\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-66113","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66113","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=66113"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66113\/revisions"}],"predecessor-version":[{"id":66114,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66113\/revisions\/66114"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=66113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=66113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=66113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}