I would read the specifications of DP to understand why two DP should
have so different behavior and then understand where create the issue
ticket (at Microsoft or at Oracle).

--
Fabio Maulo


El 21/09/2010, a las 21:34, sudip <[email protected]> escribió:

> The following code snippet works fine with SQL Server 2008 (SP1) but
> with Oracle 11g the call to session.BeginTransaction() throws an
> exception with the message  ‘Connection is already part of a local or
> a distributed transaction’ (stack trace shown below). Using the
> '"NHibernate.Driver.OracleDataClientDriver".
>
> Has anyone else run into this?
>
> using (var scope = new TransactionScope())
> {
>   using (var session = sessionFactory.OpenSession())
>   using (var transaction = session.BeginTransaction())
>   {
>      // do what you need to do with the session
>      transaction.Commit();
>    }
>    scope.Complete();
> }
>
>
> Exception at:    at
> NHibernate.Transaction.AdoTransaction.Begin(IsolationLevel
> isolationLevel)
>   at NHibernate.Transaction.AdoTransaction.Begin()
>   at NHibernate.AdoNet.ConnectionManager.BeginTransaction()
>   at NHibernate.Impl.SessionImpl.BeginTransaction()
>   at
> MetraTech.BusinessEntity.DataAccess.Persistence.StandardRepository.SaveInstances(List`1&
> dataObjects) in S:\MetraTech\BusinessEntity\DataAccess\Persistence
> \StandardRepository.cs:line 3103
>
> Inner error message was: Connection is already part of a local or a
> distributed transaction
> Inner exception at:    at
> Oracle.DataAccess.Client.OracleConnection.BeginTransaction(IsolationLevel
> isolationLevel)
>   at
> Oracle.DataAccess.Client.OracleConnection.BeginDbTransaction(IsolationLevel
> isolationLevel)
>   at
> System.Data.Common.DbConnection.System.Data.IDbConnection.BeginTransaction()
>   at NHibernate.Transaction.AdoTransaction.Begin(IsolationLevel
> isolationLevel)
>
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