{"id":185236,"date":"2024-11-10T19:52:19","date_gmt":"2024-11-10T11:52:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/185236\/"},"modified":"2024-11-10T19:52:20","modified_gmt":"2024-11-10T11:52:20","slug":"%e4%bd%bf%e7%94%a8sql-server-lt%e5%8a%a0%e5%bf%ab%e6%95%b8%e6%93%9a%e6%8c%96%e6%8e%98%e6%95%88%e7%8e%87%ef%bc%88sqlserver-lt%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/185236\/","title":{"rendered":"\u4f7f\u7528SQL Server LT\u52a0\u5feb\u6578\u64da\u6316\u6398\u6548\u7387\uff08sqlserver lt\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8sql-server-lt%e5%8a%a0%e5%bf%ab%e6%95%b8%e6%93%9a%e6%8c%96%e6%8e%98%e6%95%88%e7%8e%87-HgDeRcWLDx\">\u4f7f\u7528SQL Server LT\u52a0\u5feb\u6578\u64da\u6316\u6398\u6548\u7387<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u6316\u6398\u5df2\u6210\u70ba\u4f01\u696d\u7372\u53d6\u6d1e\u5bdf\u548c\u505a\u51fa\u660e\u667a\u6c7a\u7b56\u7684\u91cd\u8981\u5de5\u5177\u3002SQL Server LT\uff08Lightweight\uff09\u662f\u4e00\u500b\u5c08\u70ba\u6578\u64da\u6316\u6398\u800c\u8a2d\u8a08\u7684\u8f15\u91cf\u7d1a\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u6578\u64da\u8655\u7406\u548c\u5206\u6790\u7684\u6548\u7387\u3002\u672c\u6587\u5c07\u63a2\u8a0eSQL Server LT\u7684\u7279\u9ede\u53ca\u5176\u5728\u6578\u64da\u6316\u6398\u4e2d\u7684\u61c9\u7528\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"sql-server-lt%e7%9a%84%e7%89%b9%e9%bb%9e-HgDeRcWLDx\">SQL Server LT\u7684\u7279\u9ede<\/h2>\n<p>SQL Server LT\u662f\u4e00\u500b\u91dd\u5c0d\u5c0f\u578b\u548c\u4e2d\u578b\u4f01\u696d\u8a2d\u8a08\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5177\u6709\u4ee5\u4e0b\u5e7e\u500b\u4e3b\u8981\u7279\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u8f15\u91cf\u7d1a\u8a2d\u8a08\uff1a<\/strong>SQL Server LT\u7684\u67b6\u69cb\u7c21\u55ae\uff0c\u4f54\u7528\u8cc7\u6e90\u5c11\uff0c\u9069\u5408\u5728\u8cc7\u6e90\u6709\u9650\u7684\u74b0\u5883\u4e2d\u904b\u884c\u3002<\/li>\n<li><strong>\u9ad8\u6548\u6027\u80fd\uff1a<\/strong>\u5176\u512a\u5316\u7684\u67e5\u8a62\u8655\u7406\u548c\u6578\u64da\u5b58\u5132\u65b9\u5f0f\u4f7f\u5f97\u6578\u64da\u6aa2\u7d22\u901f\u5ea6\u66f4\u5feb\uff0c\u80fd\u5920\u652f\u6301\u66f4\u9ad8\u7684\u4e26\u767c\u8a2a\u554f\u3002<\/li>\n<li><strong>\u6613\u65bc\u64f4\u5c55\uff1a<\/strong>\u96a8\u8457\u696d\u52d9\u7684\u589e\u9577\uff0cSQL Server LT\u53ef\u4ee5\u8f15\u9b06\u64f4\u5c55\u4ee5\u6eff\u8db3\u4e0d\u65b7\u589e\u9577\u7684\u6578\u64da\u9700\u6c42\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\uff1a<\/strong>SQL Server LT\u652f\u6301\u7d50\u69cb\u5316\u548c\u975e\u7d50\u69cb\u5316\u6578\u64da\uff0c\u80fd\u5920\u9748\u6d3b\u8655\u7406\u5404\u985e\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e6%8c%96%e6%8e%98%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-HgDeRcWLDx\">\u6578\u64da\u6316\u6398\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u6316\u6398\u662f\u5f9e\u5927\u91cf\u6578\u64da\u4e2d\u63d0\u53d6\u6709\u7528\u4fe1\u606f\u7684\u904e\u7a0b\u3002\u5b83\u6d89\u53ca\u591a\u7a2e\u6280\u8853\uff0c\u5305\u62ec\u7d71\u8a08\u5206\u6790\u3001\u6a5f\u5668\u5b78\u7fd2\u548c\u6578\u64da\u53ef\u8996\u5316\u3002\u6578\u64da\u6316\u6398\u7684\u4e3b\u8981\u76ee\u7684\u662f\u8b58\u5225\u6a21\u5f0f\u3001\u8da8\u52e2\u548c\u95dc\u806f\uff0c\u4ee5\u4fbf\u4f01\u696d\u80fd\u5920\u505a\u51fa\u66f4\u597d\u7684\u6c7a\u7b56\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8sql-server-lt%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e6%8c%96%e6%8e%98-HgDeRcWLDx\">\u4f7f\u7528SQL Server LT\u9032\u884c\u6578\u64da\u6316\u6398<\/h2>\n<p>SQL Server LT\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u548c\u529f\u80fd\uff0c\u5e6b\u52a9\u7528\u6236\u9032\u884c\u6578\u64da\u6316\u6398\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\u5834\u666f\uff1a<\/p>\n<h3 id=\"1-%e6%95%b8%e6%93%9a%e9%a0%90%e8%99%95%e7%90%86-HgDeRcWLDx\">1. \u6578\u64da\u9810\u8655\u7406<\/h3>\n<p>\u5728\u9032\u884c\u6578\u64da\u6316\u6398\u4e4b\u524d\uff0c\u6578\u64da\u9810\u8655\u7406\u662f\u81f3\u95dc\u91cd\u8981\u7684\u4e00\u6b65\u3002SQL Server LT\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u6e05\u7406\u548c\u8f49\u63db\u529f\u80fd\uff0c\u5e6b\u52a9\u7528\u6236\u6e96\u5099\u6578\u64da\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u53ef\u4ee5\u522a\u9664\u91cd\u8907\u7684\u8a18\u9304\uff1a<\/p>\n<pre><code>DELETE FROM \u8868\u540d\nWHERE ID NOT IN (\n    SELECT MIN(ID)\n    FROM \u8868\u540d\n    GROUP BY \u5217\u540d\n);<\/code><\/pre>\n<h3 id=\"2-%e6%a9%9f%e5%99%a8%e5%ad%b8%e7%bf%92%e6%a8%a1%e5%9e%8b%e7%9a%84%e6%a7%8b%e5%bb%ba-HgDeRcWLDx\">2. \u6a5f\u5668\u5b78\u7fd2\u6a21\u578b\u7684\u69cb\u5efa<\/h3>\n<p>SQL Server LT\u652f\u6301\u591a\u7a2e\u6a5f\u5668\u5b78\u7fd2\u7b97\u6cd5\uff0c\u7528\u6236\u53ef\u4ee5\u5229\u7528\u9019\u4e9b\u7b97\u6cd5\u69cb\u5efa\u9810\u6e2c\u6a21\u578b\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u6c7a\u7b56\u6a39\u7b97\u6cd5\u9032\u884c\u5206\u985e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>CREATE MODEL \u6a21\u578b\u540d\nUSING\n    (SELECT \u7279\u5fb51, \u7279\u5fb52, \u6a19\u7c64\n     FROM \u8868\u540d)\nWITH (Algorithm = 'DecisionTree');<\/code><\/pre>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e5%8f%af%e8%a6%96%e5%8c%96-HgDeRcWLDx\">3. \u6578\u64da\u53ef\u8996\u5316<\/h3>\n<p>\u6578\u64da\u53ef\u8996\u5316\u662f\u6578\u64da\u6316\u6398\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\uff0cSQL Server LT\u53ef\u4ee5\u8207\u591a\u7a2e\u53ef\u8996\u5316\u5de5\u5177\u96c6\u6210\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u76f4\u89c0\u5730\u7406\u89e3\u6578\u64da\u3002\u4f8b\u5982\uff0c\u4f7f\u7528Power BI\u53ef\u4ee5\u5c07SQL Server LT\u4e2d\u7684\u6578\u64da\u8f49\u63db\u70ba\u53ef\u8996\u5316\u5831\u544a\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-HgDeRcWLDx\">\u7d50\u8ad6<\/h2>\n<p>SQL Server LT\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u6578\u64da\u6316\u6398\u7684\u6548\u7387\u3002\u901a\u904e\u5176\u8f15\u91cf\u7d1a\u8a2d\u8a08\u3001\u9ad8\u6548\u6027\u80fd\u548c\u9748\u6d3b\u7684\u64f4\u5c55\u6027\uff0c\u4f01\u696d\u53ef\u4ee5\u66f4\u597d\u5730\u8655\u7406\u548c\u5206\u6790\u6578\u64da\uff0c\u5f9e\u800c\u7372\u5f97\u6709\u50f9\u503c\u7684\u5546\u696d\u6d1e\u5bdf\u3002\u7121\u8ad6\u662f\u6578\u64da\u9810\u8655\u7406\u3001\u6a5f\u5668\u5b78\u7fd2\u6a21\u578b\u7684\u69cb\u5efa\uff0c\u9084\u662f\u6578\u64da\u53ef\u8996\u5316\uff0cSQL Server LT\u90fd\u80fd\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684SQL Server LT\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u696d\u52d9\u9700\u6c42\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u4f01\u696d\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u6027\u80fd\u548c\u5b89\u5168\u7684\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528SQL Server LT\u63d0\u5347\u6578\u64da\u6316\u6398\u6548\u7387\uff0c\u512a\u5316\u67e5\u8a62\u6027\u80fd\uff0c\u5be6\u73fe\u66f4\u5feb\u7684\u6578\u64da\u5206\u6790\u548c\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-185236","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185236","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=185236"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185236\/revisions"}],"predecessor-version":[{"id":185237,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185236\/revisions\/185237"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=185236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=185236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=185236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}