Oracle和Access中表结构一致

需求是从Oracle中取出需要的数据导入Access中
一般来说Access中是没有数据的,下面做法是可以完成需求的,
但是我们老大说速度慢有没更快的方法,求高人赐教!
我的做法
        /// <summary>
        /// 将dt中内容复制到 TableName所在表中
        /// </summary>
        /// <param name="dt">数据</param>
        /// <param name="TableName">表名</param>
        /// <returns>是否成功</returns>
        public bool Insert_Dt(DataSet dt, string TableName)
        {
            try
            {
                OleDbDataAdapter da = (OleDbDataAdapter)dbo.GetDataAdapter            ("select * from " + TableName + " where 1<>1");
                OleDbCommandBuilder ocb = new OleDbCommandBuilder(da);

                DataSet ds1 = new DataSet();
                da.Fill(ds1);
                ds1.Merge(dt);
                for (int i = 0; i < ds1.Tables[0].Rows.Count; i++)
                {
                    ds1.Tables[0].Rows[i].SetAdded();
                }
                da.Update(ds1);
                return true;
            }
            catch
            {
                return false;
            }
        }

求高人指点!!