{"id":137193,"date":"2024-10-31T12:09:52","date_gmt":"2024-10-31T04:09:52","guid":{"rendered":"https:\/\/server.hk\/cnblog\/137193\/"},"modified":"2024-10-31T12:09:53","modified_gmt":"2024-10-31T04:09:53","slug":"sql-server-clr%e4%b9%8b%e5%8e%bb%e9%99%a4%e5%ad%97%e7%ac%a6%e4%b8%b2%e4%b8%ad%e7%9a%84%e6%8c%87%e5%ae%9a%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/137193\/","title":{"rendered":"SQL Server CLR\u4e4b\u53bb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6307\u5b9a\u5b57\u7b26\u4e32"},"content":{"rendered":"

SQL Server CLR\u4e4b\u53bb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6307\u5b9a\u5b57\u7b26\u4e32<\/h1>\n

\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u4e2d\uff0c\u5b57\u7b26\u4e32\u8655\u7406\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u3002\u7279\u5225\u662f\u5728\u4f7f\u7528 SQL Server \u6642\uff0c\u958b\u767c\u8005\u7d93\u5e38\u9700\u8981\u5c0d\u5b57\u7b26\u4e32\u9032\u884c\u5404\u7a2e\u64cd\u4f5c\uff0c\u4f8b\u5982\u53bb\u9664\u7279\u5b9a\u7684\u5b50\u5b57\u7b26\u4e32\u3002\u96d6\u7136 SQL Server \u63d0\u4f9b\u4e86\u591a\u7a2e\u5167\u5efa\u51fd\u6578\u4f86\u8655\u7406\u5b57\u7b26\u4e32\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528 CLR\uff08Common Language Runtime\uff09\u4f86\u5be6\u73fe\u66f4\u8907\u96dc\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u6703\u66f4\u52a0\u9748\u6d3b\u548c\u9ad8\u6548\u3002<\/p>\n

\u4ec0\u9ebc\u662f SQL Server CLR\uff1f<\/h2>\n

SQL Server CLR \u662f\u4e00\u7a2e\u5141\u8a31\u958b\u767c\u8005\u5728 SQL Server \u4e2d\u4f7f\u7528 .NET \u8a9e\u8a00\uff08\u5982 C# \u6216 VB.NET\uff09\u4f86\u7de8\u5beb\u4ee3\u78bc\u7684\u6280\u8853\u3002\u9019\u4f7f\u5f97\u958b\u767c\u8005\u53ef\u4ee5\u5229\u7528 .NET \u7684\u5f37\u5927\u529f\u80fd\u4f86\u64f4\u5c55 SQL Server \u7684\u529f\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5b57\u7b26\u4e32\u3001\u6578\u64da\u7d50\u69cb\u548c\u7b97\u6cd5\u65b9\u9762\u3002<\/p>\n

\u4f7f\u7528 CLR \u53bb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6307\u5b9a\u5b57\u7b26\u4e32<\/h2>\n

\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 C# \u7de8\u5beb\u7684 SQL Server CLR \u51fd\u6578\u793a\u4f8b\uff0c\u8a72\u51fd\u6578\u53ef\u4ee5\u53bb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6307\u5b9a\u5b50\u5b57\u7b26\u4e32\u3002<\/p>\n

\u6b65\u9a5f 1: \u5275\u5efa CLR \u51fd\u6578<\/h3>\n
\nusing System;\nusing System.Data.SqlTypes;\nusing Microsoft.SqlServer.Server;\n\npublic class StringManipulation\n{\n    [SqlFunction]\n    public static SqlString RemoveSubstring(SqlString input, SqlString substring)\n    {\n        if (input.IsNull || substring.IsNull)\n            return SqlString.Null;\n\n        return new SqlString(input.Value.Replace(substring.Value, string.Empty));\n    }\n}\n<\/code><\/pre>\n
\u6b65\u9a5f 2: \u7de8\u8b6f\u548c\u90e8\u7f72<\/h3>\n
\u5c07\u4e0a\u8ff0\u4ee3\u78bc\u7de8\u8b6f\u70ba DLL \u6587\u4ef6\uff0c\u7136\u5f8c\u5c07\u5176\u90e8\u7f72\u5230 SQL Server \u4e2d\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u547d\u4ee4\u4f86\u8a3b\u518a CLR \u7a0b\u5e8f\u96c6\uff1a<\/p>\n
\nCREATE ASSEMBLY StringManipulation\nFROM 'C:pathtoyourassembly.dll'\nWITH PERMISSION_SET = SAFE;\n<\/code><\/pre>\n
\u6b65\u9a5f 3: \u5275\u5efa SQL Server \u51fd\u6578<\/h3>\n
\u63a5\u4e0b\u4f86\uff0c\u60a8\u9700\u8981\u5728 SQL Server \u4e2d\u5275\u5efa\u4e00\u500b\u51fd\u6578\u4f86\u8abf\u7528 CLR \u51fd\u6578\uff1a<\/p>\n
\nCREATE FUNCTION dbo.RemoveSubstring\n(\n    @input NVARCHAR(MAX),\n    @substring NVARCHAR(MAX)\n)\nRETURNS NVARCHAR(MAX)\nAS EXTERNAL NAME StringManipulation.RemoveSubstring;\n<\/code><\/pre>\n
\u4f7f\u7528\u793a\u4f8b<\/h2>\n
\u73fe\u5728\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u9019\u500b\u81ea\u5b9a\u7fa9\u51fd\u6578\u4f86\u53bb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6307\u5b9a\u5b50\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff1a<\/p>\n
\nSELECT dbo.RemoveSubstring('Hello, World!', 'World') AS Result;\n<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de\uff1a<\/p>\n
\nHello, !\n<\/code><\/pre>\n
\u6027\u80fd\u8003\u91cf<\/h2>\n
\u4f7f\u7528 CLR \u4f86\u8655\u7406\u5b57\u7b26\u4e32\u64cd\u4f5c\u901a\u5e38\u6bd4 T-SQL \u66f4\u9ad8\u6548\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u9032\u884c\u5927\u91cf\u5b57\u7b26\u4e32\u8655\u7406\u7684\u60c5\u6cc1\u4e0b\u3002\u56e0\u70ba CLR \u53ef\u4ee5\u5229\u7528 .NET \u7684\u512a\u5316\u548c\u5167\u5b58\u7ba1\u7406\u529f\u80fd\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u8655\u7406\u8907\u96dc\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u6642\u8868\u73fe\u66f4\u4f73\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u5728 SQL Server \u4e2d\u4f7f\u7528 CLR \u4f86\u53bb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6307\u5b9a\u5b57\u7b26\u4e32\u662f\u4e00\u7a2e\u9748\u6d3b\u4e14\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u7de8\u5beb\u81ea\u5b9a\u7fa9\u7684 CLR \u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5145\u5206\u5229\u7528 .NET \u7684\u5f37\u5927\u529f\u80fd\uff0c\u5be6\u73fe\u66f4\u8907\u96dc\u7684\u5b57\u7b26\u4e32\u8655\u7406\u9700\u6c42\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6027\u80fd\uff0c\u9084\u64f4\u5c55\u4e86 SQL Server \u7684\u529f\u80fd\uff0c\u4f7f\u5176\u80fd\u5920\u66f4\u597d\u5730\u6eff\u8db3\u696d\u52d9\u9700\u6c42\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u9748\u6d3b\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f7f\u7528 SQL Server \u7684\u5167\u5efa\u51fd\u6578\u9084\u662f CLR \u64f4\u5c55\uff0c\u958b\u767c\u8005\u90fd\u61c9\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u64f4\u5c55\u60a8\u7684\u696d\u52d9\u3002\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Learn how to remove specific substrings from strings in SQL Server using CLR integration for efficient string manipulation and enhanced performance.<\/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-137193","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/137193","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=137193"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/137193\/revisions"}],"predecessor-version":[{"id":137194,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/137193\/revisions\/137194"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=137193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=137193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=137193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}