{"id":135871,"date":"2024-10-31T10:44:28","date_gmt":"2024-10-31T02:44:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/135871\/"},"modified":"2024-10-31T10:44:29","modified_gmt":"2024-10-31T02:44:29","slug":"sql-server-2005%e4%b8%ad%e6%95%b8%e6%93%9a%e6%8c%96%e6%8e%98%e7%ae%97%e6%b3%95%e6%93%b4%e5%b1%95%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/135871\/","title":{"rendered":"SQL Server 2005\u4e2d\u6578\u64da\u6316\u6398\u7b97\u6cd5\u64f4\u5c55\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"sql-server-2005%e4%b8%ad%e6%95%b8%e6%93%9a%e6%8c%96%e6%8e%98%e7%ae%97%e6%b3%95%e6%93%b4%e5%b1%95%e6%96%b9%e6%b3%95-qrwjYJXvXu\">SQL Server 2005\u4e2d\u6578\u64da\u6316\u6398\u7b97\u6cd5\u64f4\u5c55\u65b9\u6cd5<\/h1>\n<p>\u6578\u64da\u6316\u6398\u662f\u4e00\u500b\u91cd\u8981\u7684\u6280\u8853\u9818\u57df\uff0c\u65e8\u5728\u5f9e\u5927\u91cf\u6578\u64da\u4e2d\u63d0\u53d6\u6709\u50f9\u503c\u7684\u4fe1\u606f\u3002SQL Server 2005\u4f5c\u70ba\u5fae\u8edf\u7684\u4e00\u6b3e\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u6316\u6398\u7b97\u6cd5\uff0c\u5e6b\u52a9\u7528\u6236\u9032\u884c\u6578\u64da\u5206\u6790\u548c\u9810\u6e2c\u3002\u672c\u6587\u5c07\u63a2\u8a0eSQL Server 2005\u4e2d\u6578\u64da\u6316\u6398\u7b97\u6cd5\u7684\u64f4\u5c55\u65b9\u6cd5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e6%8c%96%e6%8e%98%e7%ae%97%e6%b3%95%e6%a6%82%e8%bf%b0-qrwjYJXvXu\">\u6578\u64da\u6316\u6398\u7b97\u6cd5\u6982\u8ff0<\/h2>\n<p>SQL Server 2005\u652f\u6301\u591a\u7a2e\u6578\u64da\u6316\u6398\u7b97\u6cd5\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6c7a\u7b56\u6a39\uff08Decision Trees\uff09<\/strong>\uff1a\u7528\u65bc\u5206\u985e\u548c\u9810\u6e2c\uff0c\u901a\u904e\u6a39\u72c0\u7d50\u69cb\u4f86\u8868\u793a\u6c7a\u7b56\u904e\u7a0b\u3002<\/li>\n<li><strong>\u95dc\u806f\u898f\u5247\uff08Association Rules\uff09<\/strong>\uff1a\u7528\u65bc\u767c\u73fe\u6578\u64da\u4e4b\u9593\u7684\u95dc\u806f\u6027\uff0c\u5e38\u7528\u65bc\u5e02\u5834\u7c4c\u5283\u3002<\/li>\n<li><strong>\u805a\u985e\uff08Clustering\uff09<\/strong>\uff1a\u5c07\u6578\u64da\u5206\u7d44\uff0c\u4ee5\u4fbf\u65bc\u8b58\u5225\u76f8\u4f3c\u6027\u3002<\/li>\n<li><strong>\u6642\u9593\u5e8f\u5217\uff08Time Series\uff09<\/strong>\uff1a\u7528\u65bc\u5206\u6790\u6642\u9593\u5e8f\u5217\u6578\u64da\uff0c\u9032\u884c\u9810\u6e2c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%93%b4%e5%b1%95%e6%95%b8%e6%93%9a%e6%8c%96%e6%8e%98%e7%ae%97%e6%b3%95%e7%9a%84%e6%96%b9%e6%b3%95-qrwjYJXvXu\">\u64f4\u5c55\u6578\u64da\u6316\u6398\u7b97\u6cd5\u7684\u65b9\u6cd5<\/h2>\n<p>\u5728SQL Server 2005\u4e2d\uff0c\u9664\u4e86\u5167\u5efa\u7684\u6578\u64da\u6316\u6398\u7b97\u6cd5\u5916\uff0c\u7528\u6236\u9084\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\u64f4\u5c55\u7b97\u6cd5\u7684\u529f\u80fd\uff1a<\/p>\n<h3 id=\"1-%e8%87%aa%e5%ae%9a%e7%be%a9%e7%ae%97%e6%b3%95-qrwjYJXvXu\">1. \u81ea\u5b9a\u7fa9\u7b97\u6cd5<\/h3>\n<p>\u7528\u6236\u53ef\u4ee5\u6839\u64da\u7279\u5b9a\u9700\u6c42\u5275\u5efa\u81ea\u5b9a\u7fa9\u7684\u6578\u64da\u6316\u6398\u7b97\u6cd5\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528.NET Framework\u4f86\u7de8\u5beb\u7b97\u6cd5\u7684\u908f\u8f2f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u81ea\u5b9a\u7fa9\u7b97\u6cd5\u793a\u4f8b\uff1a<\/p>\n<pre><code>\npublic class CustomAlgorithm : Microsoft.SqlServer.Dts.Pipeline.IDTSComponentPersist\n{\n    public void ProcessData()\n    {\n        \/\/ \u81ea\u5b9a\u7fa9\u6578\u64da\u8655\u7406\u908f\u8f2f\n    }\n}\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e5%a4%96%e9%83%a8%e5%ba%ab-qrwjYJXvXu\">2. \u4f7f\u7528\u5916\u90e8\u5eab<\/h3>\n<p>SQL Server 2005\u5141\u8a31\u7528\u6236\u96c6\u6210\u5916\u90e8\u6578\u64da\u6316\u6398\u5eab\uff0c\u4f8b\u5982R\u8a9e\u8a00\u6216Python\u3002\u9019\u4e9b\u8a9e\u8a00\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u5206\u6790\u548c\u6a5f\u5668\u5b78\u7fd2\u529f\u80fd\u3002\u7528\u6236\u53ef\u4ee5\u901a\u904eSQL CLR\u96c6\u6210\u9019\u4e9b\u5916\u90e8\u5eab\uff0c\u5f9e\u800c\u64f4\u5c55\u6578\u64da\u6316\u6398\u7684\u80fd\u529b\u3002<\/p>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e9%a0%90%e8%99%95%e7%90%86-qrwjYJXvXu\">3. \u6578\u64da\u9810\u8655\u7406<\/h3>\n<p>\u5728\u9032\u884c\u6578\u64da\u6316\u6398\u4e4b\u524d\uff0c\u6578\u64da\u7684\u8cea\u91cf\u548c\u683c\u5f0f\u81f3\u95dc\u91cd\u8981\u3002\u7528\u6236\u53ef\u4ee5\u4f7f\u7528SQL Server\u7684\u6578\u64da\u8f49\u63db\u529f\u80fd\u4f86\u6e05\u7406\u548c\u6e96\u5099\u6578\u64da\uff0c\u4ee5\u63d0\u9ad8\u6316\u6398\u7b97\u6cd5\u7684\u6e96\u78ba\u6027\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u522a\u9664\u91cd\u8907\u6578\u64da\uff1a<\/p>\n<pre><code>\nDELETE FROM YourTable\nWHERE ID NOT IN (\n    SELECT MIN(ID)\n    FROM YourTable\n    GROUP BY Column1, Column2\n);\n<\/code><\/pre>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b-qrwjYJXvXu\">\u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u8a31\u591a\u4f01\u696d\u5229\u7528SQL Server 2005\u7684\u6578\u64da\u6316\u6398\u529f\u80fd\u4f86\u63d0\u5347\u696d\u52d9\u6c7a\u7b56\u3002\u4f8b\u5982\uff0c\u4e00\u5bb6\u96f6\u552e\u516c\u53f8\u53ef\u4ee5\u4f7f\u7528\u95dc\u806f\u898f\u5247\u7b97\u6cd5\u4f86\u5206\u6790\u9867\u5ba2\u8cfc\u8cb7\u884c\u70ba\uff0c\u5f9e\u800c\u5236\u5b9a\u66f4\u6709\u6548\u7684\u4fc3\u92b7\u7b56\u7565\u3002\u901a\u904e\u5206\u6790\u9867\u5ba2\u7684\u8cfc\u8cb7\u6b77\u53f2\uff0c\u8a72\u516c\u53f8\u80fd\u5920\u767c\u73fe\u54ea\u4e9b\u7522\u54c1\u7d93\u5e38\u4e00\u8d77\u8cfc\u8cb7\uff0c\u4e26\u6839\u64da\u9019\u4e9b\u4fe1\u606f\u9032\u884c\u4ea4\u53c9\u92b7\u552e\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-qrwjYJXvXu\">\u7d50\u8ad6<\/h2>\n<p>SQL Server 2005\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u6316\u6398\u529f\u80fd\uff0c\u4e26\u4e14\u7528\u6236\u53ef\u4ee5\u901a\u904e\u81ea\u5b9a\u7fa9\u7b97\u6cd5\u3001\u5916\u90e8\u5eab\u96c6\u6210\u548c\u6578\u64da\u9810\u8655\u7406\u7b49\u65b9\u6cd5\u9032\u4e00\u6b65\u64f4\u5c55\u9019\u4e9b\u529f\u80fd\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u5920\u5e6b\u52a9\u4f01\u696d\u5f9e\u6578\u64da\u4e2d\u63d0\u53d6\u6709\u50f9\u503c\u7684\u4fe1\u606f\uff0c\u9084\u80fd\u63d0\u5347\u696d\u52d9\u6c7a\u7b56\u7684\u6e96\u78ba\u6027\u548c\u6548\u7387\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc\u6578\u64da\u6316\u6398\u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u60a8\u53ef\u4ee5\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\uff0c\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u548c\u652f\u6301\u3002\u7121\u8ad6\u662f\u5c0b\u627e <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u6211\u5011\u90fd\u80fd\u63d0\u4f9b\u5e6b\u52a9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22SQL Server 2005\u4e2d\u7684\u6578\u64da\u6316\u6398\u7b97\u6cd5\u64f4\u5c55\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u5206\u6790\u80fd\u529b\uff0c\u767c\u6398\u6f5b\u5728\u5546\u6a5f\u8207\u6d1e\u5bdf\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-135871","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135871","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=135871"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135871\/revisions"}],"predecessor-version":[{"id":135872,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135871\/revisions\/135872"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=135871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=135871"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=135871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}