{"id":71057,"date":"2024-10-15T14:39:27","date_gmt":"2024-10-15T06:39:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/71057\/"},"modified":"2024-10-15T14:39:27","modified_gmt":"2024-10-15T06:39:27","slug":"mssql%e4%bd%bf%e7%94%a8%e6%b8%b8%e6%a8%99%e5%be%aa%e7%92%b0%e8%99%95%e7%90%86%e8%a4%87%e9%9b%9c%e6%93%8d%e4%bd%9c%ef%bc%88mssql%e6%b8%b8%e6%a8%99%e5%be%aa%e7%92%b0%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/71057\/","title":{"rendered":"MSSQL\u4f7f\u7528\u6e38\u6a19\u5faa\u74b0\u8655\u7406\u8907\u96dc\u64cd\u4f5c\uff08mssql\u6e38\u6a19\u5faa\u74b0\uff09"},"content":{"rendered":"<h1 id=\"mssql%e4%bd%bf%e7%94%a8%e6%b8%b8%e6%a8%99%e5%be%aa%e7%92%b0%e8%99%95%e7%90%86%e8%a4%87%e9%9b%9c%e6%93%8d%e4%bd%9c-JYsPZskQqb\">MSSQL\u4f7f\u7528\u6e38\u6a19\u5faa\u74b0\u8655\u7406\u8907\u96dc\u64cd\u4f5c<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6e38\u6a19\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u5de5\u5177\uff0c\u7279\u5225\u662f\u5728 Microsoft SQL Server (MSSQL) \u4e2d\u3002\u6e38\u6a19\u5141\u8a31\u958b\u767c\u8005\u9010\u884c\u8655\u7406\u67e5\u8a62\u7d50\u679c\uff0c\u9019\u5728\u9700\u8981\u9032\u884c\u8907\u96dc\u64cd\u4f5c\u6642\u7279\u5225\u6709\u7528\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e MSSQL \u4e2d\u6e38\u6a19\u7684\u4f7f\u7528\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u969b\u7684\u7bc4\u4f8b\u4f86\u8aaa\u660e\u5982\u4f55\u6709\u6548\u5730\u4f7f\u7528\u6e38\u6a19\u9032\u884c\u5faa\u74b0\u8655\u7406\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%b8%b8%e6%a8%99%ef%bc%9f-JYsPZskQqb\">\u4ec0\u9ebc\u662f\u6e38\u6a19\uff1f<\/h2>\n<p>\u6e38\u6a19\u662f\u4e00\u7a2e\u8cc7\u6599\u5eab\u5c0d\u8c61\uff0c\u5141\u8a31\u7528\u6236\u9010\u884c\u8a2a\u554f\u67e5\u8a62\u7d50\u679c\u96c6\u3002\u8207\u4e00\u6b21\u6027\u8fd4\u56de\u6240\u6709\u7d50\u679c\u7684\u67e5\u8a62\u4e0d\u540c\uff0c\u6e38\u6a19\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9010\u884c\u8655\u7406\u7684\u65b9\u5f0f\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u9032\u884c\u591a\u6b65\u9a5f\u8a08\u7b97\u6216\u66f4\u65b0\u7684\u60c5\u6cc1\u7279\u5225\u6709\u7528\u3002<\/p>\n<h2 id=\"%e6%b8%b8%e6%a8%99%e7%9a%84%e9%a1%9e%e5%9e%8b-JYsPZskQqb\">\u6e38\u6a19\u7684\u985e\u578b<\/h2>\n<ul>\n<li><strong>\u975c\u614b\u6e38\u6a19\uff1a<\/strong>\u9019\u7a2e\u6e38\u6a19\u5728\u6253\u958b\u6642\u6703\u8907\u88fd\u7d50\u679c\u96c6\uff0c\u4e26\u4e14\u4e0d\u6703\u96a8\u8457\u57fa\u790e\u8cc7\u6599\u7684\u8b8a\u5316\u800c\u66f4\u65b0\u3002<\/li>\n<li><strong>\u52d5\u614b\u6e38\u6a19\uff1a<\/strong>\u9019\u7a2e\u6e38\u6a19\u6703\u96a8\u8457\u57fa\u790e\u8cc7\u6599\u7684\u8b8a\u5316\u800c\u66f4\u65b0\uff0c\u63d0\u4f9b\u5373\u6642\u7684\u67e5\u8a62\u7d50\u679c\u3002<\/li>\n<li><strong>\u5feb\u7167\u6e38\u6a19\uff1a<\/strong>\u9019\u7a2e\u6e38\u6a19\u5728\u6253\u958b\u6642\u6703\u6355\u6349\u7576\u524d\u7684\u8cc7\u6599\u72c0\u614b\uff0c\u4e26\u5728\u6e38\u6a19\u7684\u751f\u547d\u9031\u671f\u5167\u4fdd\u6301\u4e0d\u8b8a\u3002<\/li>\n<li><strong>\u524d\u5411\u6e38\u6a19\uff1a<\/strong>\u9019\u7a2e\u6e38\u6a19\u53ea\u5141\u8a31\u5411\u524d\u79fb\u52d5\uff0c\u7121\u6cd5\u56de\u5230\u4e4b\u524d\u7684\u884c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%b8%b8%e6%a8%99%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-JYsPZskQqb\">\u4f7f\u7528\u6e38\u6a19\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n<p>\u5728 MSSQL \u4e2d\u4f7f\u7528\u6e38\u6a19\u7684\u57fa\u672c\u6b65\u9a5f\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\u5ba3\u544a\u6e38\u6a19<\/li>\n<li>\u6253\u958b\u6e38\u6a19<\/li>\n<li>\u63d0\u53d6\u8cc7\u6599<\/li>\n<li>\u8655\u7406\u8cc7\u6599<\/li>\n<li>\u95dc\u9589\u6e38\u6a19<\/li>\n<li>\u91cb\u653e\u6e38\u6a19<\/li>\n<\/ol>\n<h2 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8%e6%b8%b8%e6%a8%99%e9%80%b2%e8%a1%8c%e8%a4%87%e9%9b%9c%e6%93%8d%e4%bd%9c-JYsPZskQqb\">\u7bc4\u4f8b\uff1a\u4f7f\u7528\u6e38\u6a19\u9032\u884c\u8907\u96dc\u64cd\u4f5c<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u6e38\u6a19\u4f86\u8a08\u7b97\u6bcf\u4f4d\u54e1\u5de5\u7684\u5e74\u7d42\u734e\u91d1\uff1a<\/p>\n<pre><code>\nDECLARE @EmployeeID INT, @Bonus DECIMAL(10, 2)\n\nDECLARE EmployeeCursor CURSOR FOR\nSELECT EmployeeID, Salary FROM Employees\n\nOPEN EmployeeCursor\n\nFETCH NEXT FROM EmployeeCursor INTO @EmployeeID, @Salary\n\nWHILE @@FETCH_STATUS = 0\nBEGIN\n    -- \u5047\u8a2d\u734e\u91d1\u70ba\u85aa\u6c34\u768410%\n    SET @Bonus = @Salary * 0.10\n\n    -- \u66f4\u65b0\u54e1\u5de5\u734e\u91d1\n    UPDATE Employees SET Bonus = @Bonus WHERE EmployeeID = @EmployeeID\n\n    FETCH NEXT FROM EmployeeCursor INTO @EmployeeID, @Salary\nEND\n\nCLOSE EmployeeCursor\nDEALLOCATE EmployeeCursor\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5ba3\u544a\u4e86\u4e00\u500b\u6e38\u6a19\uff0c\u7136\u5f8c\u5f9e Employees \u8868\u4e2d\u9078\u53d6\u54e1\u5de5\u7684 ID \u548c\u85aa\u6c34\u3002\u63a5\u8457\uff0c\u6211\u5011\u4f7f\u7528 WHILE \u5faa\u74b0\u9010\u884c\u8655\u7406\u6bcf\u4f4d\u54e1\u5de5\u7684\u8cc7\u6599\uff0c\u8a08\u7b97\u734e\u91d1\u4e26\u66f4\u65b0\u8cc7\u6599\u8868\u3002<\/p>\n<h2 id=\"%e6%b8%b8%e6%a8%99%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-JYsPZskQqb\">\u6e38\u6a19\u7684\u512a\u7f3a\u9ede<\/h2>\n<p>\u96d6\u7136\u6e38\u6a19\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u975e\u5e38\u6709\u7528\uff0c\u4f46\u5b83\u5011\u4e5f\u6709\u4e00\u4e9b\u7f3a\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u554f\u984c\uff1a<\/strong>\u6e38\u6a19\u901a\u5e38\u6bd4\u6279\u91cf\u64cd\u4f5c\u6162\uff0c\u56e0\u70ba\u5b83\u5011\u9010\u884c\u8655\u7406\u8cc7\u6599\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u6d88\u8017\uff1a<\/strong>\u6e38\u6a19\u6703\u4f54\u7528\u7cfb\u7d71\u8cc7\u6e90\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u8cc7\u6599\u6642\u3002<\/li>\n<li><strong>\u8907\u96dc\u6027\uff1a<\/strong>\u4f7f\u7528\u6e38\u6a19\u7684\u7a0b\u5f0f\u78bc\u901a\u5e38\u6bd4\u4f7f\u7528\u7c21\u55ae\u7684 SQL \u67e5\u8a62\u66f4\u8907\u96dc\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-JYsPZskQqb\">\u7e3d\u7d50<\/h2>\n<p>\u5728 MSSQL \u4e2d\uff0c\u6e38\u6a19\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u8655\u7406\u8907\u96dc\u7684\u8cc7\u6599\u64cd\u4f5c\u3002\u96d6\u7136\u4f7f\u7528\u6e38\u6a19\u6709\u5176\u512a\u7f3a\u9ede\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u5b83\u5011\u63d0\u4f9b\u4e86\u5fc5\u8981\u7684\u9748\u6d3b\u6027\u548c\u63a7\u5236\u529b\u3002\u5c0d\u65bc\u9700\u8981\u5728\u9999\u6e2f\u9032\u884c\u9ad8\u6548\u8cc7\u6599\u8655\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u5347\u8cc7\u6599\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u4e86\u89e3\u5982\u4f55\u6709\u6548\u4f7f\u7528\u6e38\u6a19\uff0c\u5c07\u6709\u52a9\u65bc\u958b\u767c\u8005\u5728 MSSQL \u74b0\u5883\u4e2d\u66f4\u597d\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22MSSQL\u4e2d\u4f7f\u7528\u6e38\u6a19\u5faa\u74b0\u9032\u884c\u8907\u96dc\u64cd\u4f5c\u7684\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\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-71057","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/71057","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=71057"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/71057\/revisions"}],"predecessor-version":[{"id":71058,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/71057\/revisions\/71058"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=71057"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=71057"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=71057"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}