1

好的，这有点复杂，所以我会尽量简化它。我有一个带有替代触发器的 SQL Server 视图。触发器调用 CLR UDF (C#)，将其称为 MyUDF。MyUDF 尝试使用文字连接字符串打开第二个连接，即

using (SqlConnection connection2 = new SqlConnection(newConnString)) { ...

我已经确认连接字符串是好的。我还确认 UDF 在更新触发器之外可以正常工作。但是，当被更新触发器调用时，我得到如下所示的 DotNet 错误。我什至尝试根据这个 KB 启用 DTC，但没有成功： //msdn.microsoft.com/en-us/library/dd327979.aspx

由于权限，我需要打开第二个连接。当前连接可能没有足够的权限来执行必要的查询，所以我不能使用"context connection=true"

问题：有没有办法在这种情况下打开第二个连接？

这是 DotNet 错误（SQL Server 2008 Standard、Windows 2008 x86、DotNet 4）：

A .NET Framework error occurred during execution of user-defined routine or aggregate "MyUDF": 
System.Data.SqlClient.SqlException: Transaction context in use by another session.
System.Data.SqlClient.SqlException: 
   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
   at System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[] buffer, TransactionManagerRequestType request, String transactionName, TransactionManagerIsolationLevel isoLevel, Int32 timeout, SqlInternalTransaction transaction, TdsParserStateObject stateObj, Boolean isDelegateControlRequest)
   at System.Data.SqlClient.SqlInternalConnectionTds.PropagateTransactionCookie(Byte[] cookie)
   at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx)
   at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx)
   at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction)
   at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction)
   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
   at System.Data.SqlClient.SqlConnection.Open()
   at UserDefinedFunctions.MyUDF(SqlString data)
4

0 回答 0