TAL Data Warehouse. BCISTUTOR.weebly.com

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1 TAL Data Warehouse

2 TAL Star Diagram Original

3 TAL OrderDetail Modify Query Datasheet View (12 Records) Table View SQL View ALTER TABLE OrderDetail ADD COLUMN Time_key Number;!!! CHANGE FIELD SIZE TO LONG INTEGER!!!

4 TAL OrderDetail Modify Query SQL View Index Pane View CREATE INDEX TimeNDX ON OrderDetail (Time_key);

5 TAL OrderDetail Update Need populate the Time_key field in the OrderDetail table with data. In the new time table the Time_key field is primary key. In the Query, relate the tables by the date fields.

6 TAL OrderDetail Modify Query Datasheet View (12 Records updated) QBE View SQL View UPDATE [Time ] INNER JOIN OrderDetail ON [Time ].Date = OrderDetail.OrderDate SET OrderDetail.Time_key = [Time ]![Time_key] WHERE (([OrderDetail]![OrderDate]=[Time ]![Date]));

7 New TAL TIME Table

8 TAL OrderDetail Indexes SQL View Index Pane View CREATE INDEX PrimaryKey ON OrderDetail (OrderNum, ItemNum); CREATE INDEX ItemNDX ON OrderDetail (ItemNum); CREATE INDEX CustomerNDX ON OrderDetail (CustomerNum); CREATE INDEX RepNDX ON OrderDetail (RepNum); CREATE INDEX DateNDX ON OrderDetail (OrderDate); CREATE INDEX TimeNDX ON OrderDetail (Time_key);

9 TAL Time Table Indexes SQL View CREATE INDEX PrimaryKey ON Time (Time_key); Index Pane View CREATE INDEX DayofWeekNDX ON Time (Day_of_Week); CREATE INDEX MonthNDX ON Time (Month); CREATE INDEX Cal_YearNDX ON Time (Cal_Year); CREATE INDEX QuarterNDX ON Time (Quarter); CREATE INDEX Month_keyNDX ON Time (Month_Key); CREATE INDEX SerialNumNDX ON Time (Serial_Num); CREATE INDEX WeekNumNDX ON Time (Week_Num); CREATE INDEX DayNumNDX ON Time (Day_Number); CREATE INDEX DayofWeekNumNDX ON Time (Day_of_Week_Num);

10 TAL Customer Indexes SQL View Index Pane View CREATE INDEX PrimaryKey ON Customer (CustomerNum); CREATE INDEX CustomerNameNDX ON Customer (CustomerName); CREATE INDEX StateNDX ON Customer (State);

11 TAL Item Indexes SQL View Index Pane View CREATE INDEX PrimaryKey ON Item (ItemNum); CREATE INDEX CategoryNDX ON Item (Category); CREATE INDEX StorehouseNDX ON Item (Storehouse);

12 TAL Rep Indexes SQL View Index Pane View CREATE INDEX PrimaryKey ON Rep (RepNum); CREATE INDEX LastNameNDX ON Rep (LastName); CREATE INDEX FirstNameNDX ON Rep (FirstName); CREATE INDEX CityNDX ON Rep (City); CREATE INDEX StateNDX ON Rep (State); CREATE INDEX PostalCodeNDX ON Rep (PostalCode);

13 TAL Rep Table Datasheet View (4 Records) Index Pane View Table View

14 TAL Item Table Datasheet View (15 Records) Index Pane View Table View

15 TAL Customer Table Datasheet View (13 Records) Index Pane View Table View

16 TAL OrderDetail Table Datasheet View (13 Records) Index Pane View Table View

17 TAL Time Table Datasheet View (3288 Records) Index Pane View Table View

18 New TAL Star Diagram

19 TAL Star Diagram ERDPlus version

20 TAL Data Warehouse Relation List Fact Table 1NF OrderDetail [OrderNum, ItemNum, OrderDate, CustomerNum, RepNum, NumOrdered, QuotedPrice, ExtendedPrice, Time_key] Dimension Tables 3NF Customer [CustomerNum, CustomerName, Street, City, State, PostalCode, Balance, CreditLimit] Rep [RepNum, LastName, FirstName, Street, City, State, PostalCode, Commission, Rate] Item [ItemNum, Description, OnHand, Category, Storehouse, Price] Time [Time_key, Date, Day_of_Week, Month, Cal_Year, Fiscal_Year, Quarter, Month_Key, Month_Day, Serial_Num, Week_Num, Day_Number, Day_of_Week_Num]

21 Appending Florida Data Customer and Rep tables currently have CA data. Copy Customer and Rep tables as Customer CA and Rep CA. Import Customer and Rep tables into the data warehouse database using External data. Rename the imported tables as Customer FL and Rep FL.

22 Appending Florida Data Compare the two Customer tables and the two Rep tables side by side to view any data that may need to be changed i.e. duplicate CustomerNum and RepNum. What would you do if there were duplicates? Hint: Change one of the numbers.

23 Appending Florida Data Take note of how many records are in the Customer FL table (43 Records).

24 TAL Append Customer Table Datasheet View (55 Records) QBE View SQL View INSERT INTO [Customer] ( CustomerNum, CustomerName, Street, City, State, PostalCode, Balance, CreditLimit, RepNum ) SELECT [Customer FL].CustomerNum, [Customer FL].CustomerName, [Customer FL].Street, [Customer FL].City, [Customer FL].State, [Customer FL].PostalCode, [Customer FL].Balance, [Customer FL].CreditLimit, [Customer FL].RepNum FROM [Customer FL];

25 TAL Append Rep Table Datasheet View (13 Records) QBE View SQL View INSERT INTO Rep ( RepNum, LastName, FirstName, Street, City, State, PostalCode, Commission, Rate ) SELECT [Rep FL].RepNum, [Rep FL].LastName, [Rep FL].FirstName, [Rep FL].Street, [Rep FL].City, [Rep FL].State, [Rep FL].PostalCode, [Rep FL].Commission, [Rep FL].Rate FROM [Rep FL];

26 TAL Append Item Table Datasheet View (40 Records) QBE View SQL View INSERT INTO Item ( ItemNum, Description, OnHand, Category, Storehouse, Price ) SELECT [Item FL].ItemNum, [Item FL].Description, [Item FL].OnHand, [Item FL].Category, [Item FL].Storehouse, [Item FL].Price FROM [Item FL];

27 TAL Append OrderDetail Table Datasheet View (43 Records) QBE View SQL View INSERT INTO OrderDetail ( OrderNum, ItemNum, Time_key, OrderDate, CustomerNum, RepNum, NumOrdered, QuotedPrice, ExtendedPrice, TeamID ) SELECT [OrderDetail FL].OrderNum, [OrderDetail FL].ItemNum, [OrderDetail FL].TimeKey, [OrderDetail FL].OrderDate, [OrderDetail FL].CustomerNum, [OrderDetail FL].RepNum, [OrderDetail FL].NumOrdered, [OrderDetail FL].QuotedPrice, [OrderDetail FL].ExtendedPrice, [OrderDetail FL].TeamID FROM [OrderDetail FL];

28 Create Report Customer Item

29 TAL Customer SubTotal Query Datasheet View QBE View SQL View SELECT OrderDetail.CustomerNum, Customer.CustomerName, Count(OrderDetail.RepNum) AS CountofOrders, Sum(OrderDetail.ExtendedPrice) AS CustomerSubTotal, Count(OrderDetail.OrderNum) AS CountofCustomers FROM Customer INNER JOIN OrderDetail ON Customer.CustomerNum = OrderDetail.CustomerNum GROUP BY OrderDetail.CustomerNum, Customer.CustomerName ORDER BY Customer.CustomerName;

30 TAL Customer Total Sales Query Datasheet View QBE View SQL View SELECT Sum(OrderDetail.ExtendedPrice) AS SumOfExtendedPrice FROM OrderDetail;

31 TAL Customer Percentage Query Datasheet View (25 Records) QBE View SQL View SELECT CustomerSubTotal.CustomerNum, CustomerSubTotal.CustomerName, CustomerSubTotal.CustomerSubTotal, CustomerTotalSales.SumOfExtendedPrice, [CustomerSubTotal]/[SumOfExtendedPrice] AS CustomerPercent FROM CustomerSubTotal, CustomerTotalSales;

32 TAL Customer Report with FL data

33 TAL Item SubTotal Query Datasheet View QBE View SQL View SELECT OrderDetail.ItemNum, Item.Description, Count(OrderDetail.RepNum) AS CountofOrders, Sum(OrderDetail.ExtendedPrice) AS ItemSubtotal, Count(OrderDetail.OrderNum) AS CountofItems FROM Item INNER JOIN OrderDetail ON Item.ItemNum = OrderDetail.ItemNum GROUP BY OrderDetail.ItemNum, Item.Description ORDER BY Item.Description;

34 TAL Item Total Sales Query Datasheet View QBE View SQL View SELECT Sum(OrderDetail.ExtendedPrice) AS SumOfExtendedPrice FROM OrderDetail;

35 TAL Item Percentage Query Datasheet View (30 Records) QBE View SQL View SELECT ItemSubTotal.ItemNum, ItemSubTotal.Description, ItemSubTotal.ItemSubtotal, ItemTotalSales.SumOfExtendedPrice, [ItemSubTotal]![ItemSubtotal]/[ItemTotalSales]![SumOfExtendedPrice] AS ItemPercentage FROM ItemSubTotal, ItemTotalSales GROUP BY ItemSubTotal.ItemNum, ItemSubTotal.Description, ItemSubTotal.ItemSubtotal, ItemTotalSales.SumOfExtendedPrice, [ItemSubTotal]![ItemSubtotal]/[ItemTotalSales]![SumOfExtendedPrice] ORDER BY ItemSubTotal.Description;

36 TAL Item Report with FL data