[Mono-dev] Strange mono behaviour on Oracle

[APS]

Hi, it's a couple of days that I'm working on mono and Oracle 
comparing behaviours between mono and .Net
Now I've found this problem.
I make and oracle connection, create and oraclecommand and I launch 
and I launch an executenonquery. I this query fails the next 
transaction I create, within a new connection also fails with error


System.Data.OracleClient.OracleException: ORA-01453: SET TRANSACTION 
deve essere la prima istruzione della transazione

in <0x000a6> System.Data.OracleClient.Oci.OciTransactionHandle:Begin ()
in <0x00042> 
System.Data.OracleClient.OracleConnection:BeginTransaction (IsolationLevel il)
in <0x0000f> System.Data.OracleClient.OracleConnection:BeginTransaction ()
in <0x0000a> 
System.Data.OracleClient.OracleConnection:System.Data.IDbConnection.BeginTransaction 
()

I tested it in linux with Oracle Instant Client and in windows with 
Oracle Client 9.2
It's possible that is always used a transaction that is not rolled 
back on errors?
Thanks in advance for help.
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