{"id":141255,"date":"2024-10-31T21:32:18","date_gmt":"2024-10-31T13:32:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/141255\/"},"modified":"2024-10-31T21:32:19","modified_gmt":"2024-10-31T13:32:19","slug":"sql-server-%e4%b8%ad%e5%89%b5%e5%bb%ba%e5%ba%8f%e8%99%9f%e7%9a%84%e6%8a%80%e8%a1%93%e5%af%a6%e8%b8%90%ef%bc%88sqlserver-%e4%b8%ad%e5%ba%8f%e8%99%9f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/141255\/","title":{"rendered":"SQL Server \u4e2d\u5275\u5efa\u5e8f\u865f\u7684\u6280\u8853\u5be6\u8e10\uff08sqlserver \u4e2d\u5e8f\u865f\uff09"},"content":{"rendered":"<h1 id=\"sql-server-%e4%b8%ad%e5%89%b5%e5%bb%ba%e5%ba%8f%e8%99%9f%e7%9a%84%e6%8a%80%e8%a1%93%e5%af%a6%e8%b8%90-qennfnlhub\">SQL Server \u4e2d\u5275\u5efa\u5e8f\u865f\u7684\u6280\u8853\u5be6\u8e10<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u5e8f\u865f\uff08Sequence\uff09\u662f\u4e00\u7a2e\u7528\u65bc\u751f\u6210\u552f\u4e00\u6578\u503c\u7684\u5c0d\u8c61\uff0c\u901a\u5e38\u7528\u65bc\u4e3b\u9375\u6216\u5176\u4ed6\u9700\u8981\u552f\u4e00\u6a19\u8b58\u7684\u5834\u666f\u3002SQL Server \u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5275\u5efa\u548c\u7ba1\u7406\u5e8f\u865f\uff0c\u672c\u6587\u5c07\u63a2\u8a0e\u5728 SQL Server \u4e2d\u5275\u5efa\u5e8f\u865f\u7684\u6280\u8853\u5be6\u8e10\uff0c\u5305\u62ec\u5e8f\u865f\u7684\u57fa\u672c\u6982\u5ff5\u3001\u5275\u5efa\u65b9\u6cd5\u3001\u4f7f\u7528\u793a\u4f8b\u4ee5\u53ca\u6ce8\u610f\u4e8b\u9805\u3002<\/p>\n<h2 id=\"%e5%ba%8f%e8%99%9f%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-qennfnlhub\">\u5e8f\u865f\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5e8f\u865f\u662f\u4e00\u7a2e\u6578\u64da\u5eab\u5c0d\u8c61\uff0c\u5141\u8a31\u7528\u6236\u751f\u6210\u4e00\u7cfb\u5217\u7684\u6574\u6578\u503c\u3002\u9019\u4e9b\u503c\u53ef\u4ee5\u5728\u591a\u500b\u8868\u4e2d\u5171\u4eab\uff0c\u4e26\u4e14\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u6703\u8a71\u4e2d\u4f7f\u7528\u3002\u8207\u50b3\u7d71\u7684\u81ea\u589e\u5217\uff08IDENTITY\uff09\u4e0d\u540c\uff0c\u5e8f\u865f\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u9748\u6d3b\u6027\uff0c\u56e0\u70ba\u5b83\u5011\u4e0d\u4f9d\u8cf4\u65bc\u7279\u5b9a\u7684\u8868\u3002<\/p>\n<h2 id=\"%e5%89%b5%e5%bb%ba%e5%ba%8f%e8%99%9f-qennfnlhub\">\u5275\u5efa\u5e8f\u865f<\/h2>\n<p>\u5728 SQL Server \u4e2d\uff0c\u5275\u5efa\u5e8f\u865f\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE SEQUENCE sequence_name\n    START WITH initial_value\n    INCREMENT BY increment_value\n    MINVALUE min_value\n    MAXVALUE max_value\n    CYCLE | NO CYCLE;<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u5404\u500b\u53c3\u6578\u7684\u89e3\u91cb\uff1a<\/p>\n<ul>\n<li><strong>sequence_name<\/strong>: \u5e8f\u865f\u7684\u540d\u7a31\u3002<\/li>\n<li><strong>initial_value<\/strong>: \u5e8f\u865f\u7684\u8d77\u59cb\u503c\u3002<\/li>\n<li><strong>increment_value<\/strong>: \u6bcf\u6b21\u751f\u6210\u65b0\u503c\u6642\u7684\u589e\u91cf\u3002<\/li>\n<li><strong>min_value<\/strong>: \u5e8f\u865f\u7684\u6700\u5c0f\u503c\u3002<\/li>\n<li><strong>max_value<\/strong>: \u5e8f\u865f\u7684\u6700\u5927\u503c\u3002<\/li>\n<li><strong>CYCLE<\/strong>: \u7576\u9054\u5230\u6700\u5927\u503c\u5f8c\uff0c\u5e8f\u865f\u5c07\u91cd\u65b0\u958b\u59cb\uff1b<strong>NO CYCLE<\/strong>: \u7576\u9054\u5230\u6700\u5927\u503c\u5f8c\uff0c\u5c07\u4e0d\u518d\u751f\u6210\u65b0\u503c\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e5%89%b5%e5%bb%ba%e4%b8%80%e5%80%8b%e7%b0%a1%e5%96%ae%e7%9a%84%e5%ba%8f%e8%99%9f-qennfnlhub\">\u793a\u4f8b\uff1a\u5275\u5efa\u4e00\u500b\u7c21\u55ae\u7684\u5e8f\u865f<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5275\u5efa\u5e8f\u865f\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE SEQUENCE OrderNumberSeq\n    START WITH 1\n    INCREMENT BY 1\n    MINVALUE 1\n    MAXVALUE 10000\n    NO CYCLE;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>OrderNumberSeq<\/code> \u7684\u5e8f\u865f\uff0c\u5f9e 1 \u958b\u59cb\uff0c\u6bcf\u6b21\u589e\u52a0 1\uff0c\u6700\u5c0f\u503c\u70ba 1\uff0c\u6700\u5927\u503c\u70ba 10000\uff0c\u4e26\u4e14\u4e0d\u6703\u5faa\u74b0\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%ba%8f%e8%99%9f-qennfnlhub\">\u4f7f\u7528\u5e8f\u865f<\/h2>\n<p>\u4f7f\u7528\u5e8f\u865f\u751f\u6210\u65b0\u503c\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT NEXT VALUE FOR sequence_name;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u4f7f\u7528\u4e0a\u9762\u5275\u5efa\u7684\u5e8f\u865f\u4f86\u751f\u6210\u4e00\u500b\u65b0\u7684\u8a02\u55ae\u865f\uff1a<\/p>\n<pre><code>SELECT NEXT VALUE FOR OrderNumberSeq AS NewOrderNumber;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u4e00\u500b\u65b0\u7684\u8a02\u55ae\u865f\uff0c\u4e26\u4e14\u6bcf\u6b21\u8abf\u7528\u90fd\u6703\u81ea\u52d5\u589e\u52a0\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-qennfnlhub\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5e8f\u865f\u662f\u5168\u5c40\u7684\uff0c\u9019\u610f\u5473\u8457\u5728\u4e0d\u540c\u7684\u8868\u6216\u6703\u8a71\u4e2d\u90fd\u53ef\u4ee5\u4f7f\u7528\u540c\u4e00\u500b\u5e8f\u865f\u3002<\/li>\n<li>\u5982\u679c\u5e8f\u865f\u9054\u5230\u6700\u5927\u503c\uff0c\u6839\u64da\u8a2d\u7f6e\u7684\u9078\u9805\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u6216\u91cd\u65b0\u958b\u59cb\u3002<\/li>\n<li>\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e2d\uff0c\u4f7f\u7528\u5e8f\u865f\u53ef\u4ee5\u6709\u6548\u907f\u514d\u4e3b\u9375\u885d\u7a81\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-qennfnlhub\">\u7e3d\u7d50<\/h2>\n<p>\u5728 SQL Server \u4e2d\uff0c\u5e8f\u865f\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u751f\u6210\u552f\u4e00\u7684\u6578\u503c\u6a19\u8b58\u3002\u901a\u904e\u9748\u6d3b\u7684\u5275\u5efa\u548c\u4f7f\u7528\u65b9\u5f0f\uff0c\u5e8f\u865f\u80fd\u5920\u6eff\u8db3\u591a\u7a2e\u696d\u52d9\u9700\u6c42\u3002\u7121\u8ad6\u662f\u5728\u8a02\u55ae\u7ba1\u7406\u3001\u7528\u6236\u8b58\u5225\u9084\u662f\u5176\u4ed6\u9700\u8981\u552f\u4e00\u6a19\u8b58\u7684\u5834\u666f\u4e2d\uff0c\u5e8f\u865f\u90fd\u80fd\u63d0\u4f9b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\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\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 SQL Server \u4e2d\u5275\u5efa\u5e8f\u865f\u7684\u6280\u8853\u5be6\u8e10\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u7ba1\u7406\u548c\u751f\u6210\u5e8f\u865f\u4ee5\u63d0\u5347\u6578\u64da\u5eab\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-141255","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/141255","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=141255"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/141255\/revisions"}],"predecessor-version":[{"id":141256,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/141255\/revisions\/141256"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=141255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=141255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=141255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}