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PROBLEMS 31

PROBLEMS

2.1 Creating an REA Diagram based on given tables
Examine the following tables and indicate the primary key (using PK) and the foreign
keyes) (using FK) for each table. Based on the given tables, draw a complete REA diagram for the
database.

Inventory

Item_No Description Unit Cost Unit Price aOH

2010 Blender 14.00 29.95 100
2015 Toaster 12.00 19.95 200
2020 Mixer 23.00 33.95 150
2025 Television 499.00 699.95 95
2030 Freezer 799.00 999.95 52
2035 Refrigerator 699.00 849.95 75
2040 Radio 45.00 79.95 200
2045 Clock 79.00 99.95 150

Salesperson Cashier

Salesperson_Name Name

101 John Smith 201 Scott Brown
102 Brenda Kim 202 Stony Lee
103 Julia Berens 203 Jim White
104 Joe McGuire 204 Pat Thomas

Customer

Customer_No Name City State Credit Limit
-
1000 Smith Phoenix AZ 2500
1001 Jones , , St. Louis MO 1500
1002 Jeffries 'y Atlanta GA 4000
1003 Gilkey Phoenix AZ 5000
1004 Lankford Phoenix AZ 2000
1005 Zeile Chicago IL 2000
1006 Pagnozzi Salt Lake UT 3000
1007 Arocha Chicago IL 1000