Phillip Morgan, the owner of Morgan Importing, makes periodic buying trips to various countries. During the trips, he keeps notes about the items he purchases and basic data about their shipments. He hired a college student as an intern, and she transformed his notes into the spreadsheets in Figure 4-9. This is just sample data. Phillip has purchased hundreds of items over the years, and they have been shipped in dozens of different shipments. Phillip wants to enter the information age, thus he has decided to develop a database of his inventory. He wants to keep track of the items he has purchased, their shipments, and eventually customers and sales. To get started, he has asked you to create a database for the data in Figure 4-9.

A. Follow the procedure shown in Figure 4-1 to assess these data.

1. List all functional dependencies.

2. List any multivalued dependencies.

3. List all candidate keys.

4. List all primary keys

5. List all foreign keys.

6. State any assumptions you make as you list these components.

B. List questions you would ask Phillip to verify your assumptions.

C. If there are any multivalued dependencies, create the tables needed to eliminate these dependencies.

D. The relationship between shipment and item data could possibly be inferred by matching values in the From cells to values in the City cells. Describe two problems with that strategy.

E. Describe a change to this spreadsheet that does express the shipmentitem relationship.

F. Assume that Phillip wishes to create an updatable database from these data. Design tables you think are appropriate. State all referential integrity constraints. Figure 4-9 Spreadsheets from Morgan Importing 154 Part 2 Database Design

G. Assume that Phillip wishes to create a read-only database from these data. Design tables you think are appropriate. State all referential integrity constraints.

H. Do these data have the multivalue, multicolumn problem? If so, how will you deal with it?

I. Do these data have the inconsistent data problem? If so, how will you deal with it?

J. Do these data have a null value data problem? If so, how will you deal with it?

K. Do these data have the general-purpose remarks problem? If so, how will you deal with it?

E. Describe a change to this spreadsheet that does express the shipment-item relationship F Assume that Phillip wishes to create an updatable database from these data. Design igure: 4-9: tables you think are appropriate. State all referential integrity constraints preadsheets from Morgan mporting 1 ShipmentNumbe Shippe Contact Fio DepartureAiva Contents InsuredValue Pliont QE dining set, large bureau, 49100300 Wordwide 800-123-4567 Jose Philippines 5/5/2011 6/17/1999 porcelain lamps $27.500 Miscellaneous linen, large masks 14 setting Woven goods, antique leather 488955 Intenational 800-123-8898 Mrilyn Singapore 6/2/2011 Willow design china $7,500 84899440 Wordwide 800-123-4567 lose 73/2011 7128/2011 chairs Large burcau, brass lamps, willow 399400 Inlenaliurial 800-123-8898 Marily Singapureee 52011 9/11/2011 design servinng disthes $18,000 City Salesperson Price Willow Serving Dishes /15/2009 Singapore Jade Antiques Swee Lai Large bureau Brass lamps QE Dining Set 54,500 $9,500 $1,200 14,300 10 7/17/2009 Singapore Eastern Sales Jeremey 7/20/2009 Singapore Jade Antiques Mr. James 4/7/2009 ManilaE. Treasures Cracielle 12 13 14 15