TAL Data Warehouse - Weebly

TAL Data Warehouse

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TAL Star Diagram Original


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 !!!

TAL OrderDetail Modify Query Index Pane View SQL View


CREATE INDEX TimeNDX ON OrderDetail (Time_key);

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.


TAL OrderDetail Modify Query

Datasheet View (12 Records updated) QBE View

SQL View


UPDATE [Time2008-2016] INNER JOIN OrderDetail ON [Time2008-2016].Date = OrderDetail.OrderDate SET OrderDetail.Time_key = [Time2008-2016]![Time_key] WHERE (([OrderDetail]![OrderDate]=[Time2008-2016]![Date]));

New TAL TIME Table


TAL OrderDetail Indexes Index Pane View


SQL 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);

TAL Time Table Indexes Index Pane View


SQL View CREATE INDEX PrimaryKey ON Time2008-2016 (Time_key); CREATE INDEX DayofWeekNDX ON Time2008-2016 (Day_of_Week); CREATE INDEX MonthNDX ON Time2008-2016 (Month); CREATE INDEX Cal_YearNDX ON Time2008-2016 (Cal_Year); CREATE INDEX QuarterNDX ON Time2008-2016 (Quarter); CREATE INDEX Month_keyNDX ON Time2008-2016 (Month_Key); CREATE INDEX SerialNumNDX ON Time2008-2016 (Serial_Num); CREATE INDEX WeekNumNDX ON Time2008-2016 (Week_Num); CREATE INDEX DayNumNDX ON Time2008-2016 (Day_Number); CREATE INDEX DayofWeekNumNDX ON Time2008-2016 (Day_of_Week_Num);

TAL Customer Indexes Index Pane View


SQL View

CREATE INDEX PrimaryKey ON Customer (CustomerNum); CREATE INDEX CustomerNameNDX ON Customer (CustomerName); CREATE INDEX StateNDX ON Customer (State);

TAL Item Indexes Index Pane View


SQL View

CREATE INDEX PrimaryKey ON Item (ItemNum); CREATE INDEX CategoryNDX ON Item (Category); CREATE INDEX StorehouseNDX ON Item (Storehouse);

TAL Rep Indexes Index Pane View


SQL 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);

TAL Rep Table Index Pane View


Table View

Datasheet View (4 Records)

TAL Item Table Index Pane View


Table View


TAL Customer Table Index Pane View


Table View


TAL OrderDetail Table Index Pane View


Table View


TAL Time Table Index Pane View


Table View


New TAL Star Diagram


TAL Star Diagram ERDPlus version


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] • Time2008-2016 [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]

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.



• 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.



• Take note of how many records are in the Customer FL table (43 Records).


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];

TAL Append Rep Table


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];

TAL Append Item Table


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];

TAL Append OrderDetail Table


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];

Create Report

• Customer

• Item


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;

TAL Customer Total Sales Query


SQL View


SELECT Sum(OrderDetail.ExtendedPrice) AS SumOfExtendedPrice FROM OrderDetail;

TAL Customer Percentage Query


SQL View


SELECT CustomerSubTotal.CustomerNum, CustomerSubTotal.CustomerName, CustomerSubTotal.CustomerSubTotal, CustomerTotalSales.SumOfExtendedPrice, [CustomerSubTotal]/[SumOfExtendedPrice] AS CustomerPercent FROM CustomerSubTotal, CustomerTotalSales;

TAL Customer Report with FL data


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;

TAL Item Total Sales Query


SQL View


SELECT Sum(OrderDetail.ExtendedPrice) AS SumOfExtendedPrice FROM OrderDetail;

TAL Item Percentage Query


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;

TAL Item Report with FL data


Documents

TAL Data Warehouse - Weebly