public void Datasettest2()
        {
            var target = new MyAccess<OracleConnection, OracleCommand, OracleDataAdapter>();

            var themaNew = new BeheerContextEntity
            {
                DataKeyValue = "aaaDwight" + DateTime.Now,
                Tablename = "thema",
                DataKeyName = "themanaam"
            };
            string qry = @"select id, {0} from {1} where {0} = '{2}'";
            qry = string.Format(CultureInfo.InvariantCulture, qry, themaNew.DataKeyName, themaNew.Tablename,
                themaNew.DataKeyValue);

            target.Insert(themaNew);
            var ds = target.GetDaBusinessObject(qry, themaNew);
            Assert.AreEqual(themaNew.DataKeyValue, ds.Tables[0].Rows[0].ItemArray[1].ToString());
        }