使用oledb访问Oracle，ExecuteNonQuery是否立刻提交呢，是否会造成死锁

有这么一段程序：

 

OleDbConnection conSin = new OleDbConnection(connStrSin3);
            OleDbCommand comSin = new OleDbCommand();
            try
            {
                conSin.Open();
                comSin.Connection = conSin;
                comSin.CommandText = " update testlockb set cid=5 ";
                comSin.ExecuteNonQuery();
                int x = 0;