{"id":59529,"date":"2024-10-12T22:42:16","date_gmt":"2024-10-12T14:42:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/59529\/"},"modified":"2024-10-12T22:42:16","modified_gmt":"2024-10-12T14:42:16","slug":"c%e9%80%a3%e6%8e%a5oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e6%9b%b4%e6%94%b9%e5%be%8c%e7%9a%84%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/59529\/","title":{"rendered":"C#\u9023\u63a5Oracle\u6578\u64da\u5eab\u67e5\u8a62\u66f4\u6539\u5f8c\u7684\u6578\u64da"},"content":{"rendered":"<h1 id=\"c%e9%80%a3%e6%8e%a5oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e6%9b%b4%e6%94%b9%e5%be%8c%e7%9a%84%e6%95%b8%e6%93%9a-SBwubOBsDT\">C#\u9023\u63a5Oracle\u6578\u64da\u5eab\u67e5\u8a62\u66f4\u6539\u5f8c\u7684\u6578\u64da<\/h1>\n<p>\u5728\u73fe\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0cC#\u4f5c\u70ba\u4e00\u7a2e\u5f37\u5927\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u696d\u52d9\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7576\u9700\u8981\u8207Oracle\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u638c\u63e1\u5982\u4f55\u4f7f\u7528C#\u4f86\u9023\u63a5\u548c\u67e5\u8a62\u6578\u64da\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528C#\u9023\u63a5Oracle\u6578\u64da\u5eab\uff0c\u4e26\u67e5\u8a62\u66f4\u6539\u5f8c\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"1-%e7%92%b0%e5%a2%83%e6%ba%96%e5%82%99-SBwubOBsDT\">1. \u74b0\u5883\u6e96\u5099<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u5df2\u7d93\u5b89\u88dd\u4e86\u4ee5\u4e0b\u74b0\u5883\uff1a<\/p>\n<ul>\n<li>Visual Studio\uff08\u6216\u5176\u4ed6C#\u958b\u767c\u74b0\u5883\uff09<\/li>\n<li>Oracle Data Provider for .NET\uff08ODP.NET\uff09<\/li>\n<li>Oracle\u6578\u64da\u5eab<\/li>\n<\/ul>\n<p>\u5b89\u88ddODP.NET\u5f8c\uff0c\u60a8\u53ef\u4ee5\u5728C#\u9805\u76ee\u4e2d\u5f15\u7528\u76f8\u61c9\u7684\u547d\u540d\u7a7a\u9593\u3002<\/p>\n<h2 id=\"2-%e9%80%a3%e6%8e%a5oracle%e6%95%b8%e6%93%9a%e5%ba%ab-SBwubOBsDT\">2. \u9023\u63a5Oracle\u6578\u64da\u5eab<\/h2>\n<p>\u8981\u9023\u63a5Oracle\u6578\u64da\u5eab\uff0c\u60a8\u9700\u8981\u4f7f\u7528OracleConnection\u985e\u3002\u4ee5\u4e0b\u662f\u9023\u63a5\u6578\u64da\u5eab\u7684\u57fa\u672c\u4ee3\u78bc\u793a\u4f8b\uff1a<\/p>\n<pre><code>using Oracle.ManagedDataAccess.Client;\n\nstring connectionString = \"User Id=your_username;Password=your_password;Data Source=your_data_source;\";\nusing (OracleConnection connection = new OracleConnection(connectionString))\n{\n    connection.Open();\n    \/\/ \u9032\u884c\u6578\u64da\u67e5\u8a62\u6216\u64cd\u4f5c\n}<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u60a8\u9700\u8981\u66ff\u63db<code>your_username<\/code>\u3001<code>your_password<\/code>\u548c<code>your_data_source<\/code>\u70ba\u5be6\u969b\u7684\u6578\u64da\u5eab\u9023\u63a5\u4fe1\u606f\u3002<\/p>\n<h2 id=\"3-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-SBwubOBsDT\">3. \u67e5\u8a62\u6578\u64da<\/h2>\n<p>\u4e00\u65e6\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528OracleCommand\u985e\u4f86\u57f7\u884cSQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u67e5\u8a62\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>string query = \"SELECT * FROM your_table WHERE your_condition\";\nusing (OracleCommand command = new OracleCommand(query, connection))\n{\n    using (OracleDataReader reader = command.ExecuteReader())\n    {\n        while (reader.Read())\n        {\n            Console.WriteLine(reader[\"your_column_name\"]);\n        }\n    }\n}<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u60a8\u9700\u8981\u66ff\u63db<code>your_table<\/code>\u3001<code>your_condition<\/code>\u548c<code>your_column_name<\/code>\u70ba\u5be6\u969b\u7684\u8868\u540d\u3001\u689d\u4ef6\u548c\u5217\u540d\u3002<\/p>\n<h2 id=\"4-%e6%9f%a5%e8%a9%a2%e6%9b%b4%e6%94%b9%e5%be%8c%e7%9a%84%e6%95%b8%e6%93%9a-SBwubOBsDT\">4. \u67e5\u8a62\u66f4\u6539\u5f8c\u7684\u6578\u64da<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u67e5\u8a62\u5728\u7279\u5b9a\u6642\u9593\u7bc4\u570d\u5167\u66f4\u6539\u7684\u6578\u64da\u3002\u9019\u53ef\u4ee5\u901a\u904e\u5728SQL\u67e5\u8a62\u4e2d\u4f7f\u7528\u6642\u9593\u6233\u6216\u7248\u672c\u865f\u4f86\u5be6\u73fe\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>string query = \"SELECT * FROM your_table WHERE last_modified &gt; :lastCheck\";\nusing (OracleCommand command = new OracleCommand(query, connection))\n{\n    command.Parameters.Add(new OracleParameter(\"lastCheck\", lastCheckTime));\n    using (OracleDataReader reader = command.ExecuteReader())\n    {\n        while (reader.Read())\n        {\n            Console.WriteLine(reader[\"your_column_name\"]);\n        }\n    }\n}<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c<code>lastCheckTime<\/code>\u662f\u60a8\u8981\u6bd4\u8f03\u7684\u6642\u9593\u6233\uff0c\u9019\u6a23\u53ef\u4ee5\u7372\u53d6\u5728\u6b64\u6642\u9593\u4e4b\u5f8c\u66f4\u6539\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"5-%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-SBwubOBsDT\">5. \u932f\u8aa4\u8655\u7406<\/h2>\n<p>\u5728\u8207\u6578\u64da\u5eab\u4ea4\u4e92\u6642\uff0c\u932f\u8aa4\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528try-catch\u584a\u4f86\u6355\u7372\u548c\u8655\u7406\u7570\u5e38\uff1a<\/p>\n<pre><code>try\n{\n    \/\/ \u9023\u63a5\u548c\u67e5\u8a62\u4ee3\u78bc\n}\ncatch (OracleException ex)\n{\n    Console.WriteLine(\"Oracle\u932f\u8aa4: \" + ex.Message);\n}\ncatch (Exception ex)\n{\n    Console.WriteLine(\"\u5176\u4ed6\u932f\u8aa4: \" + ex.Message);\n}<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-SBwubOBsDT\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u4f7f\u7528C#\u9023\u63a5Oracle\u6578\u64da\u5eab\u4e26\u67e5\u8a62\u66f4\u6539\u5f8c\u7684\u6578\u64da\u3002\u9019\u5c0d\u65bc\u9700\u8981\u5be6\u6642\u6578\u64da\u66f4\u65b0\u7684\u61c9\u7528\u7a0b\u5e8f\u4f86\u8aaa\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u82e5\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u4f3a\u670d\u5668\u4f86\u904b\u884c\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u4ee5\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u9ad8\u6548\u4e14\u5b89\u5168\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528C#\u9023\u63a5Oracle\u6578\u64da\u5eab\uff0c\u67e5\u8a62\u548c\u66f4\u6539\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-59529","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/59529","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=59529"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/59529\/revisions"}],"predecessor-version":[{"id":59530,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/59529\/revisions\/59530"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=59529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=59529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=59529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}