public void Run()
        {
            using (SqlBulkCopy bulk = new SqlBulkCopy("database=test;server=localhost;integrated security=sspi;"))
            {
                bulk.BatchSize = 1200;
                bulk.DestinationTableName = "dbo.dst";
                bulk.ColumnMappings.Add("srca", "dsta");
                bulk.ColumnMappings.Add("srcb", "dstc");
                using (IDataReader rdr = new Rdr())
                {
                    bulk.WriteToServer(rdr);
                }
            }
        }