Oracle的OracleBulkCopy不支持事务处理

在进行OracleBulkCopy批量数据导入的过程中使用事务后抛出了异常，

没使用事务时可以正确批量导入，

ORA-12154：无法解析指定的连接字符串，

但是TNS配置肯定是没有错的，

难道是ConnectionString不是这样写了，执行事务时发生了变化，

还有：

//暂时发现oracle的bulkCopy不支持事务处理

using (OracleBulkCopy bulkCopy = new OracleBulkCopy(conn,OracleBulkCopyOptions.UseInternalTransaction))

如果不支持事务，这个OracleBulkCopyOptions.UseInternalTransaction怎么解释。

 private void button2_Click(object sender, EventArgs e)
 {
 OpenFileDialog afd = new OpenFileDialog();
 if (afd.ShowDialog() != System.Windows.Forms.DialogResult.OK)
 {
 return;
 }
 string fileName = afd.FileName;
 if (Path.GetExtension(fileName) != ".csv")
 {
 MessageBox.Show("文件名后缀必须是.csv");
 return;
 }
 DataTable table = new DataTable();
 using (Stream stream = new FileStream(fileName, FileMode.Open, FileAccess.Read))
 using (StreamReader sr = new StreamReader(stream, Encoding.Default))
 {
 string firstline = sr.ReadLine();
 string line;

 #region 把创建的列加入表的列集合中
 //Id
 DataColumn column = new DataColumn();
 column.ColumnName = "Id";
 column.DataType = System.Type.GetType("System.Int32");
 table.Columns.Add(column);
 //MobileNumber
 column = new DataColumn();
 column.ColumnName = "MobileNumber";
 column.DataType = System.Type.GetType("System.String");
 column.MaxLength = ;
 table.Columns.Add(column);
 //MobileArea
 column = new DataColumn();
 column.ColumnName = "MobileArea";
 column.DataType = System.Type.GetType("System.String");
 column.MaxLength = ;
 table.Columns.Add(column);
 //MobileType
 column = new DataColumn();
 column.ColumnName = "MobileType";
 column.DataType = System.Type.GetType("System.String");
 column.MaxLength = ;
 table.Columns.Add(column);
 //AreaCode
 column = new DataColumn();
 column.ColumnName = "AreaCode";
 column.DataType = System.Type.GetType("System.String");
 column.MaxLength = ;
 table.Columns.Add(column);
 //PostCode
 column = new DataColumn();
 column.ColumnName = "PostCode";
 column.DataType = System.Type.GetType("System.String");
 column.MaxLength = ;
 table.Columns.Add(column);
 #endregion

 while ((line = sr.ReadLine()) != null)
 {
 string[] mobileMsg = line.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
 int Id = Convert.ToInt32(mobileMsg[]);
 string MobileNumber = mobileMsg[].Trim('"');
 string MobileArea = mobileMsg[].Trim('"');
 string MobileType = mobileMsg[].Trim('"');
 string AreaCode = mobileMsg[].Trim('"');
 string PostCode = mobileMsg[].Trim('"');
 //创建行，把行加入表的行集合中
 DataRow row = table.NewRow();
 row["Id"] = Id;
 row["MobileNumber"] = MobileNumber;
 row["MobileArea"] = MobileArea;
 row["MobileType"] = MobileType;
 row["AreaCode"] = AreaCode;
 row["PostCode"] = PostCode;
 table.Rows.Add(row);
 }
 }

 int i = table.Rows.Count;
 Stopwatch sw = new Stopwatch();
 sw.Start();
 using (OracleConnection conn = new OracleConnection())//连接
 {
 conn.ConnectionString = @"Data Source=(DESCRIPTION =
 (ADDRESS_LIST =
 (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.117)(PORT = 1521))
 )
 (CONNECT_DATA =
 (SERVER = DEDICATED)
 (SERVICE_NAME = orcl.192.168.1.117)
 ))
 );User Id=scott;Password=abcd5226584;";
 conn.Open();
 using (OracleTransaction tx = conn.BeginTransaction())//启动事务
 using (OracleBulkCopy bulkCopy = new OracleBulkCopy(conn,OracleBulkCopyOptions.UseInternalTransaction))
 {
 bulkCopy.DestinationTableName = "T_MOBILE";
 foreach (DataColumn column in table.Columns)
 {
 bulkCopy.ColumnMappings.Add(column.ColumnName, column.ColumnName);//源列名->目标列名
 }
 try //如果发生异常就回滚
 {
 bulkCopy.WriteToServer(table);//把table表写入数据库表中
 tx.Commit();
 }
 catch (Exception ex)
 {
 tx.Rollback();
 throw new Exception(ex.Message);
 }
 }
 sw.Stop();
 MessageBox.Show("耗时：" + sw.ElapsedMilliseconds + "秒");
 }
 }
 }

错误代码：OracleBulkCopy进行事务处理的