{"id":135035,"date":"2024-10-31T06:36:28","date_gmt":"2024-10-30T22:36:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/135035\/"},"modified":"2024-10-31T06:36:29","modified_gmt":"2024-10-30T22:36:29","slug":"select%e8%aa%9e%e5%8f%a5%e8%bf%94%e5%9b%9e%e5%a4%9a%e6%a2%9d%e8%a8%98%e9%8c%84%e7%b5%a6sql-server%e8%ae%8a%e9%87%8f%e8%b3%a6%e5%80%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/135035\/","title":{"rendered":"select\u8a9e\u53e5\u8fd4\u56de\u591a\u689d\u8a18\u9304\u7d66SQL Server\u8b8a\u91cf\u8ce6\u503c"},"content":{"rendered":"<h1 id=\"select%e8%aa%9e%e5%8f%a5%e8%bf%94%e5%9b%9e%e5%a4%9a%e6%a2%9d%e8%a8%98%e9%8c%84%e7%b5%a6sql-server%e8%ae%8a%e9%87%8f%e8%b3%a6%e5%80%bc-zZWboDpZWY\">SELECT\u8a9e\u53e5\u8fd4\u56de\u591a\u689d\u8a18\u9304\u7d66SQL Server\u8b8a\u91cf\u8ce6\u503c<\/h1>\n<p>\u5728SQL Server\u4e2d\uff0c\u4f7f\u7528SELECT\u8a9e\u53e5\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u6578\u64da\u662f\u975e\u5e38\u5e38\u898b\u7684\u64cd\u4f5c\u3002\u7136\u800c\uff0c\u7576\u9700\u8981\u5c07\u591a\u689d\u8a18\u9304\u7684\u7d50\u679c\u8ce6\u503c\u7d66\u8b8a\u91cf\u6642\uff0c\u60c5\u6cc1\u6703\u8b8a\u5f97\u8907\u96dc\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u5730\u5c07SELECT\u8a9e\u53e5\u8fd4\u56de\u7684\u591a\u689d\u8a18\u9304\u8ce6\u503c\u7d66SQL Server\u8b8a\u91cf\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-zZWboDpZWY\">\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u8b8a\u91cf\u662f\u7528\u4f86\u5b58\u5132\u6578\u64da\u7684\u5bb9\u5668\u3002\u901a\u5e38\uff0c\u8b8a\u91cf\u7528\u65bc\u5b58\u5132\u55ae\u4e00\u503c\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u53ef\u80fd\u9700\u8981\u5f9e\u67e5\u8a62\u4e2d\u7372\u53d6\u591a\u689d\u8a18\u9304\u3002\u9019\u6642\uff0c\u6211\u5011\u9700\u8981\u4f7f\u7528\u4e00\u4e9b\u7279\u5b9a\u7684\u6280\u8853\u4f86\u8655\u7406\u9019\u4e9b\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e8%a1%a8%e8%ae%8a%e9%87%8f-zZWboDpZWY\">\u4f7f\u7528\u8868\u8b8a\u91cf<\/h2>\n<p>\u4e00\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u8868\u8b8a\u91cf\u3002\u8868\u8b8a\u91cf\u53ef\u4ee5\u5b58\u5132\u591a\u689d\u8a18\u9304\uff0c\u4e26\u4e14\u53ef\u4ee5\u50cf\u666e\u901a\u8868\u4e00\u6a23\u9032\u884c\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u8868\u8b8a\u91cf\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>DECLARE @Results TABLE (ID INT, Name NVARCHAR(100));\n\nINSERT INTO @Results\nSELECT ID, Name FROM Employees WHERE Department = 'Sales';\n\nSELECT * FROM @Results;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u8072\u660e\u4e86\u4e00\u500b\u8868\u8b8a\u91cf@Results\uff0c\u7136\u5f8c\u4f7f\u7528INSERT INTO\u8a9e\u53e5\u5c07\u5f9eEmployees\u8868\u4e2d\u9078\u64c7\u7684\u591a\u689d\u8a18\u9304\u63d2\u5165\u5230\u9019\u500b\u8868\u8b8a\u91cf\u4e2d\u3002\u6700\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u67e5\u8a62@Results\u4ee5\u67e5\u770b\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%b8%b8%e6%a8%99-zZWboDpZWY\">\u4f7f\u7528\u6e38\u6a19<\/h2>\n<p>\u53e6\u4e00\u7a2e\u65b9\u6cd5\u662f\u4f7f\u7528\u6e38\u6a19\u3002\u6e38\u6a19\u5141\u8a31\u9010\u884c\u8655\u7406\u67e5\u8a62\u7d50\u679c\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u9010\u689d\u8655\u7406\u6578\u64da\u7684\u60c5\u6cc1\u975e\u5e38\u6709\u7528\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u6e38\u6a19\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>DECLARE @ID INT, @Name NVARCHAR(100);\nDECLARE EmployeeCursor CURSOR FOR\nSELECT ID, Name FROM Employees WHERE Department = 'Sales';\n\nOPEN EmployeeCursor;\n\nFETCH NEXT FROM EmployeeCursor INTO @ID, @Name;\n\nWHILE @@FETCH_STATUS = 0\nBEGIN\n    PRINT 'ID: ' + CAST(@ID AS NVARCHAR(10)) + ', Name: ' + @Name;\n    FETCH NEXT FROM EmployeeCursor INTO @ID, @Name;\nEND\n\nCLOSE EmployeeCursor;\nDEALLOCATE EmployeeCursor;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u8072\u660e\u4e86\u4e00\u500b\u6e38\u6a19EmployeeCursor\uff0c\u7136\u5f8c\u4f7f\u7528FETCH NEXT\u8a9e\u53e5\u9010\u884c\u7372\u53d6\u6578\u64da\u3002\u9019\u6a23\uff0c\u6211\u5011\u53ef\u4ee5\u5c0d\u6bcf\u4e00\u689d\u8a18\u9304\u9032\u884c\u8655\u7406\uff0c\u4f8b\u5982\u6253\u5370ID\u548cName\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8xml%e6%88%96json%e6%a0%bc%e5%bc%8f-zZWboDpZWY\">\u4f7f\u7528XML\u6216JSON\u683c\u5f0f<\/h2>\n<p>\u5982\u679c\u9700\u8981\u5c07\u591a\u689d\u8a18\u9304\u8ce6\u503c\u7d66\u4e00\u500b\u8b8a\u91cf\uff0c\u9084\u53ef\u4ee5\u8003\u616e\u4f7f\u7528XML\u6216JSON\u683c\u5f0f\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u5c07\u591a\u689d\u8a18\u9304\u5e8f\u5217\u5316\u70ba\u4e00\u500b\u5b57\u7b26\u4e32\uff0c\u7136\u5f8c\u5b58\u5132\u5728\u8b8a\u91cf\u4e2d\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528XML\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>DECLARE @XML XML;\n\nSET @XML = (SELECT ID, Name FROM Employees WHERE Department = 'Sales' FOR XML PATH('Employee'));\n\nSELECT @XML;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528FOR XML PATH\u5c07\u67e5\u8a62\u7d50\u679c\u8f49\u63db\u70baXML\u683c\u5f0f\uff0c\u4e26\u5c07\u5176\u8ce6\u503c\u7d66\u8b8a\u91cf@XML\u3002\u9019\u6a23\uff0c\u6211\u5011\u5c31\u53ef\u4ee5\u5728\u4e00\u500b\u8b8a\u91cf\u4e2d\u5b58\u5132\u591a\u689d\u8a18\u9304\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-zZWboDpZWY\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li>\u5728\u4f7f\u7528\u6e38\u6a19\u6642\uff0c\u78ba\u4fdd\u5728\u4f7f\u7528\u5f8c\u95dc\u9589\u548c\u91cb\u653e\u6e38\u6a19\uff0c\u4ee5\u907f\u514d\u8cc7\u6e90\u6cc4\u6f0f\u3002<\/li>\n<li>\u4f7f\u7528\u8868\u8b8a\u91cf\u6642\uff0c\u6ce8\u610f\u5176\u5927\u5c0f\u9650\u5236\uff0c\u907f\u514d\u5b58\u5132\u904e\u591a\u6578\u64da\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528XML\u6216JSON\u683c\u5f0f\u4f86\u7c21\u5316\u6578\u64da\u8655\u7406\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u50b3\u905e\u591a\u689d\u8a18\u9304\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zZWboDpZWY\">\u7e3d\u7d50<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u5c07SELECT\u8a9e\u53e5\u8fd4\u56de\u7684\u591a\u689d\u8a18\u9304\u8ce6\u503c\u7d66\u8b8a\u91cf\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u6cd5\u5be6\u73fe\uff0c\u5305\u62ec\u4f7f\u7528\u8868\u8b8a\u91cf\u3001\u6e38\u6a19\u4ee5\u53caXML\u6216JSON\u683c\u5f0f\u3002\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u548c\u9748\u6d3b\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u7279\u5225\u662f\u5728\u9999\u6e2f\u7684\u696d\u52d9\u74b0\u5883\u4e2d\uff0c<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u63d0\u4f9b\u4e86\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528SELECT\u8a9e\u53e5\u5c07\u591a\u689d\u8a18\u9304\u8ce6\u503c\u7d66SQL Server\u8b8a\u91cf\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u548c\u9748\u6d3b\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-135035","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135035","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=135035"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135035\/revisions"}],"predecessor-version":[{"id":135036,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135035\/revisions\/135036"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=135035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=135035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=135035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}