public decimal GetDeleteTimeWithBulkOperation() { var fifteenThousandAddressWithoutId = MakeFifteenThousandAddress(generateIncrementalId: false); var fifteenThousandAddressIlist = MakeFifteenThousandAddressIlist(); var amazonAddressInsertLabMapper = new AmazonAddressInsertLabMapper(); var amazonAddressDeleteLabMapper = new AmazonAddressDeleteLabMapper(); amazonAddressInsertLabMapper.CleanAddressData(); amazonAddressInsertLabMapper.InsertAddressWithDbSetWithAddRange(fifteenThousandAddressWithoutId); var deleteTimeAllRecords = amazonAddressDeleteLabMapper.DeleteAddressWithBulkOperation(fifteenThousandAddressIlist); var deleteTime = decimal.Divide(deleteTimeAllRecords, fifteenThousandAddressIlist.Count()); return(deleteTime); }