{"id":192022,"date":"2024-11-12T17:47:18","date_gmt":"2024-11-12T09:47:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/192022\/"},"modified":"2024-11-12T17:47:20","modified_gmt":"2024-11-12T09:47:20","slug":"%e8%a9%b3%e8%a7%a3%e7%94%a8tsql%e5%9c%a8sql-server%e5%af%a6%e7%8f%be%e7%89%a9%e7%90%86%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e6%b5%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/192022\/","title":{"rendered":"\u8a73\u89e3\u7528TSQL\u5728SQL Server\u5be6\u73fe\u7269\u7406\u67e5\u8a62\u6578\u64da\u6d41"},"content":{"rendered":"<h1 id=\"%e8%a9%b3%e8%a7%a3%e7%94%a8tsql%e5%9c%a8sql-server%e5%af%a6%e7%8f%be%e7%89%a9%e7%90%86%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e6%b5%81-qjvhGZbloD\">\u8a73\u89e3\u7528TSQL\u5728SQL 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id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%89%a9%e7%90%86%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e6%b5%81%ef%bc%9f-qjvhGZbloD\">\u4ec0\u9ebc\u662f\u7269\u7406\u67e5\u8a62\u6578\u64da\u6d41\uff1f<\/h2>\n<p>\u7269\u7406\u67e5\u8a62\u6578\u64da\u6d41\u662f\u6307\u5728SQL Server\u57f7\u884c\u67e5\u8a62\u6642\uff0c\u6578\u64da\u5982\u4f55\u5728\u5167\u90e8\u6d41\u52d5\u7684\u904e\u7a0b\u3002\u9019\u5305\u62ec\u4e86\u5f9e\u78c1\u789f\u8b80\u53d6\u6578\u64da\u3001\u9032\u884c\u904e\u6ffe\u3001\u6392\u5e8f\u3001\u806f\u63a5\u7b49\u64cd\u4f5c\uff0c\u6700\u7d42\u5c07\u7d50\u679c\u8fd4\u56de\u7d66\u7528\u6236\u3002\u7406\u89e3\u7269\u7406\u67e5\u8a62\u6578\u64da\u6d41\u6709\u52a9\u65bc\u958b\u767c\u8005\u512a\u5316\u67e5\u8a62\uff0c\u6e1b\u5c11\u8cc7\u6e90\u6d88\u8017\uff0c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<h2 id=\"t-sql%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-qjvhGZbloD\">T-SQL\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>T-SQL\uff08Transact-SQL\uff09\u662fSQL Server\u7684\u64f4\u5c55SQL\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u8a31\u591a\u984d\u5916\u7684\u529f\u80fd\uff0c\u5982\u8b8a\u6578\u3001\u63a7\u5236\u6d41\u8a9e\u53e5\u548c\u932f\u8aa4\u8655\u7406\u7b49\u3002\u4f7f\u7528T-SQL\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u7de8\u5beb\u8907\u96dc\u7684\u67e5\u8a62\u548c\u5b58\u5132\u904e\u7a0b\uff0c\u4ee5\u6eff\u8db3\u696d\u52d9\u9700\u6c42\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e5%9f%b7%e8%a1%8c%e8%a8%88%e5%8a%83-qjvhGZbloD\">\u67e5\u8a62\u57f7\u884c\u8a08\u5283<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u67e5\u8a62\u57f7\u884c\u8a08\u5283\u662f\u7406\u89e3\u7269\u7406\u67e5\u8a62\u6578\u64da\u6d41\u7684\u95dc\u9375\u3002\u57f7\u884c\u8a08\u5283\u986f\u793a\u4e86SQL Server\u5982\u4f55\u57f7\u884c\u67e5\u8a62\uff0c\u5305\u62ec\u4f7f\u7528\u7684\u7d22\u5f15\u3001\u806f\u63a5\u985e\u578b\u548c\u6578\u64da\u6d41\u7684\u9806\u5e8f\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bT-SQL\u8a9e\u53e5\u4f86\u67e5\u770b\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff1a<\/p>\n<pre><code>SET SHOWPLAN_XML ON;\nGO\nSELECT * FROM YourTable WHERE YourCondition;\nGO\nSET SHOWPLAN_XML OFF;\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u8fd4\u56de\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u4ee5XML\u683c\u5f0f\u986f\u793a\u3002\u901a\u904e\u5206\u6790\u57f7\u884c\u8a08\u5283\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8b58\u5225\u6027\u80fd\u74f6\u9838\uff0c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u512a\u5316\u3002<\/p>\n<h2 id=\"%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd%e7%9a%84%e6%8a%80%e5%b7%a7-qjvhGZbloD\">\u512a\u5316\u67e5\u8a62\u6027\u80fd\u7684\u6280\u5de7<\/h2>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u78ba\u4fdd\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u5217\u4e0a\u5275\u5efa\u9069\u7576\u7684\u7d22\u5f15\u3002<\/li>\n<li><strong>\u907f\u514dSELECT *\uff1a<\/strong>\u660e\u78ba\u6307\u5b9a\u6240\u9700\u7684\u5217\uff0c\u907f\u514d\u4f7f\u7528SELECT *\uff0c\u4ee5\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u50b3\u8f38\u3002<\/li>\n<li><strong>\u4f7f\u7528JOIN\u800c\u975e\u5b50\u67e5\u8a62\uff1a<\/strong>\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528JOIN\u53ef\u4ee5\u6bd4\u5b50\u67e5\u8a62\u66f4\u6709\u6548\u7387\u3002<\/li>\n<li><strong>\u5b9a\u671f\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff1a<\/strong>\u78ba\u4fdd\u7d71\u8a08\u4fe1\u606f\u662f\u6700\u65b0\u7684\uff0c\u4ee5\u4fbfSQL Server\u80fd\u5920\u751f\u6210\u6700\u4f73\u7684\u57f7\u884c\u8a08\u5283\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96-qjvhGZbloD\">\u793a\u4f8b\uff1a\u67e5\u8a62\u512a\u5316<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u512a\u5316\u67e5\u8a62\uff1a<\/p>\n<pre><code>-- \u539f\u59cb\u67e5\u8a62\nSELECT * FROM Orders WHERE CustomerID = 'ALFKI';\n\n-- \u512a\u5316\u5f8c\u7684\u67e5\u8a62\nSELECT OrderID, OrderDate, TotalAmount \nFROM Orders \nWHERE CustomerID = 'ALFKI';\n<\/code><\/pre>\n<p>\u5728\u512a\u5316\u5f8c\u7684\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u53ea\u9078\u64c7\u4e86\u9700\u8981\u7684\u5217\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u7684\u50b3\u8f38\u91cf\uff0c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-qjvhGZbloD\">\u7d50\u8ad6<\/h2>\n<p>\u7406\u89e3\u7269\u7406\u67e5\u8a62\u6578\u64da\u6d41\u5c0d\u65bc\u512a\u5316SQL Server\u67e5\u8a62\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528T-SQL\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6df1\u5165\u5206\u6790\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u4e26\u63a1\u53d6\u76f8\u61c9\u7684\u512a\u5316\u63aa\u65bd\u3002\u638c\u63e1\u9019\u4e9b\u6280\u5de7\u4e0d\u50c5\u80fd\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u9084\u80fd\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u6027\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bcVPS\u6216\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\uff1a<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u3001<a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a>\u7b49\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528TSQL\u5728SQL Server\u4e2d\u5be6\u73fe\u7269\u7406\u67e5\u8a62\u6578\u64da\u6d41\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\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-192022","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192022","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=192022"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192022\/revisions"}],"predecessor-version":[{"id":192023,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192022\/revisions\/192023"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=192022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=192022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=192022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}