SELECT                                     -- 
    T01.[ProductKey]								 -- 
   ,T04.[EnglishProductName]					 -- 
   ,T01.[DueDateKey]								 -- 
   ,T02.[FullDateAlternateKey]				 -- 
   ,T01.[CustomerKey]							 -- 
   ,T03.[LastName]								 -- 
FROM													 -- 
   [dbo].[FactInternetSales] T01				 -- >> T01 = Description for Alias T01
   LEFT JOIN [dbo].[DimDate] T02				 -- >> T02 = Description for Alias T02
	ON													 -- 
	  T01.[DueDateKey] = T02.[DateKey]		 -- 
   LEFT JOIN [dbo].[DimCustomer] T03		 -- >> T03 = Description for Alias T03
	ON													 -- 
	  T01.[CustomerKey] = T03.[CustomerKey] -- 
   LEFT JOIN [dbo].[DimProduct] T04			 -- >> T04 = Description for Alias T04
	ON													 -- 
	  T01.[ProductKey] = T04.[ProductKey]	 --