{"id":196622,"date":"2024-11-14T01:08:19","date_gmt":"2024-11-13T17:08:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196622\/"},"modified":"2024-11-14T01:08:20","modified_gmt":"2024-11-13T17:08:20","slug":"%e5%bf%ab%e9%80%9f%e9%ab%98%e6%95%88%ef%bc%81ado-net%e6%89%b9%e9%87%8f%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%8a%80%e5%b7%a7-ado-net-%e6%89%b9%e9%87%8f%e6%9b%b4%e6%96%b0%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196622\/","title":{"rendered":"\u5feb\u901f\u9ad8\u6548\uff01ADO.NET\u6279\u91cf\u66f4\u65b0\u6578\u64da\u5eab\u7684\u6280\u5de7 (ado.net \u6279\u91cf\u66f4\u65b0\u6578\u64da\u5eab)"},"content":{"rendered":"

\u5feb\u901f\u9ad8\u6548\uff01ADO.NET\u6279\u91cf\u66f4\u65b0\u6578\u64da\u5eab\u7684\u6280\u5de7<\/h1>\n

\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u5982\u4f55\u9ad8\u6548\u5730\u9032\u884c\u6279\u91cf\u66f4\u65b0\u6210\u70ba\u4e86\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002ADO.NET\u4f5c\u70ba.NET\u6846\u67b6\u4e2d\u7528\u65bc\u6578\u64da\u8a2a\u554f\u7684\u6838\u5fc3\u6280\u8853\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u6279\u91cf\u66f4\u65b0\u3002\u672c\u6587\u5c07\u63a2\u8a0eADO.NET\u6279\u91cf\u66f4\u65b0\u6578\u64da\u5eab\u7684\u6280\u5de7\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u3002<\/p>\n

\u4ec0\u9ebc\u662fADO.NET\uff1f<\/h2>\n

ADO.NET\u662f\u5fae\u8edf\u63d0\u4f9b\u7684\u4e00\u5957\u6578\u64da\u8a2a\u554f\u6280\u8853\uff0c\u65e8\u5728\u652f\u6301\u5404\u7a2e\u6578\u64da\u6e90\u7684\u64cd\u4f5c\uff0c\u5305\u62ecSQL Server\u3001Oracle\u3001MySQL\u7b49\u3002\u5b83\u7684\u6838\u5fc3\u7d44\u4ef6\u5305\u62ecConnection\u3001Command\u3001DataReader\u548cDataSet\u7b49\uff0c\u9019\u4e9b\u7d44\u4ef6\u5171\u540c\u5354\u4f5c\u4ee5\u5be6\u73fe\u9ad8\u6548\u7684\u6578\u64da\u64cd\u4f5c\u3002<\/p>\n

\u70ba\u4ec0\u9ebc\u9700\u8981\u6279\u91cf\u66f4\u65b0\uff1f<\/h2>\n

\u5728\u8a31\u591a\u61c9\u7528\u5834\u666f\u4e2d\uff0c\u958b\u767c\u8005\u9700\u8981\u540c\u6642\u66f4\u65b0\u591a\u689d\u8a18\u9304\u3002\u50b3\u7d71\u7684\u9010\u689d\u66f4\u65b0\u65b9\u5f0f\u4e0d\u50c5\u6548\u7387\u4f4e\u4e0b\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002\u6279\u91cf\u66f4\u65b0\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u8207\u6578\u64da\u5eab\u7684\u4ea4\u4e92\u6b21\u6578\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n

ADO.NET\u6279\u91cf\u66f4\u65b0\u7684\u6280\u5de7<\/h2>\n

1. \u4f7f\u7528SqlBulkCopy<\/h3>\n

SqlBulkCopy\u662fADO.NET\u4e2d\u5c08\u9580\u7528\u65bc\u6279\u91cf\u63d2\u5165\u6578\u64da\u7684\u985e\u3002\u96d6\u7136\u5b83\u4e3b\u8981\u7528\u65bc\u63d2\u5165\u64cd\u4f5c\uff0c\u4f46\u4e5f\u53ef\u4ee5\u7528\u65bc\u66f4\u65b0\u64cd\u4f5c\u3002\u901a\u904e\u5c07\u6578\u64da\u5148\u5beb\u5165\u4e00\u500b\u81e8\u6642\u8868\uff0c\u7136\u5f8c\u4f7f\u7528SQL\u8a9e\u53e5\u9032\u884c\u66f4\u65b0\uff0c\u53ef\u4ee5\u5be6\u73fe\u9ad8\u6548\u7684\u6279\u91cf\u66f4\u65b0\u3002<\/p>\n

\nusing (SqlConnection connection = new SqlConnection(connectionString))\n{\n    connection.Open();\n    using (SqlBulkCopy bulkCopy = new SqlBulkCopy(connection))\n    {\n        bulkCopy.DestinationTableName = \"TempTable\";\n        bulkCopy.WriteToServer(dataTable);\n    }\n\n    \/\/ \u4f7f\u7528SQL\u8a9e\u53e5\u66f4\u65b0\u4e3b\u8868\n    SqlCommand command = new SqlCommand(\"UPDATE MainTable SET Column1 = TempTable.Column1 FROM TempTable WHERE MainTable.Id = TempTable.Id\", connection);\n    command.ExecuteNonQuery();\n}\n<\/code><\/pre>\n
2. \u4f7f\u7528Transaction\u9032\u884c\u6279\u91cf\u64cd\u4f5c<\/h3>\n
\u5728\u9032\u884c\u6279\u91cf\u66f4\u65b0\u6642\uff0c\u4f7f\u7528Transaction\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u5728\u66f4\u65b0\u904e\u7a0b\u4e2d\u51fa\u73fe\u932f\u8aa4\uff0c\u4e5f\u80fd\u5920\u56de\u6efe\u5230\u4e4b\u524d\u7684\u72c0\u614b\u3002<\/p>\n
\nusing (SqlConnection connection = new SqlConnection(connectionString))\n{\n    connection.Open();\n    SqlTransaction transaction = connection.BeginTransaction();\n    SqlCommand command = connection.CreateCommand();\n    command.Transaction = transaction;\n\n    try\n    {\n        foreach (var item in itemsToUpdate)\n        {\n            command.CommandText = \"UPDATE MainTable SET Column1 = @value WHERE Id = @id\";\n            command.Parameters.Clear();\n            command.Parameters.AddWithValue(\"@value\", item.Value);\n            command.Parameters.AddWithValue(\"@id\", item.Id);\n            command.ExecuteNonQuery();\n        }\n        transaction.Commit();\n    }\n    catch\n    {\n        transaction.Rollback();\n        throw;\n    }\n}\n<\/code><\/pre>\n
3. \u4f7f\u7528Stored Procedures<\/h3>\n
\u5c07\u6279\u91cf\u66f4\u65b0\u908f\u8f2f\u5c01\u88dd\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u6e1b\u5c11\u7db2\u7d61\u50b3\u8f38\u7684\u958b\u92b7\uff0c\u4e26\u63d0\u9ad8\u57f7\u884c\u6548\u7387\u3002\u958b\u767c\u8005\u53ef\u4ee5\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528\u5faa\u74b0\u7d50\u69cb\u4f86\u8655\u7406\u6279\u91cf\u66f4\u65b0\u3002<\/p>\n
\nCREATE PROCEDURE UpdateRecords\n    @IdList TABLE (Id INT),\n    @NewValue NVARCHAR(100)\nAS\nBEGIN\n    UPDATE MainTable\n    SET Column1 = @NewValue\n    WHERE Id IN (SELECT Id FROM @IdList)\nEND\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u5728\u4f7f\u7528ADO.NET\u9032\u884c\u6279\u91cf\u66f4\u65b0\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f7f\u7528SqlBulkCopy\u3001Transaction\u9084\u662fStored Procedures\uff0c\u958b\u767c\u8005\u90fd\u61c9\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u6700\u4f73\u65b9\u6848\u3002\u9019\u4e9b\u6280\u5de7\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u6578\u64da\u8655\u7406\u63d0\u4f9b\u7a69\u5b9a\u7684\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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