1. 1
Figure 2-8: Entity with a multivalued attribute (Skill) and
derived attribute (Years_Employed)

2. 2
Ch 4: Problems and Exercises 1a
Employee_ID Employee_Name Address Date_Employed
Employee_ID Skill
EMPLOYEE_SKILL
EMPLOYEE

3. 3
Fig 2-9b: Composite key attribute

4. 4
Ch 4: Problems and Exercises 1b
Flight_Number Date Number_of_Passengers
FLIGHT

5. 5
Fig 2-11a: A binary relationship with an attribute

6. 6
Ch 4: Problems and Exercises 1c
Employee_ID Employee_Name
EMPLOYEE
Employee_ID Course_ID Date_Completed
COMPLETION
COURSE
Course_ID Course_Title

7. 7
Fig 2-11b: An associative entity (CERTIFICATE)

8. 8
Ch 4: Problems and Exercises 1d
Employee_ID Employee_Name
EMPLOYEE
Certificate_Number Employee_ID Course_ID Date_Completed
CERTIFICATE
COURSE Course_ID Course_Title

9. 9
Fig 2-15a: Unary relationship
COURSE
Course_Title
Course_ID
Is_
prerequisite_
for

10. 10
Ch 4: Problems and Exercises 1e
Course_IDCOURSE
Course_ID Prerequisite_IDCOURSE_PREREQUISITE
Course_Title

11. 11
Fig 2-16 (b) Relationship with cardinality constraints
Note: The diagram is incomplete. Usually, there will be other non-key
attributes for the entities.

12. 12
Movie_Name
MOVIE
Copy_Number Movie_Name
VIDEOTAPE
Ch 4: Problems and Exercises 1g

13. 13
Fig 2-19: Example of time stamping

14. 14
Ch 4: Problems and Exercises 1h
Product_IDPRODUCT
Product_ID Effective_Date PricePRODUCT_PRICE

15. 15
Figure 3-6b: Partial specialization rule
Note: The diagram is incomplete. It is missing the subtype discriminator.

16. 16
Ch 4: Problems and Exercises 2a
Vehicle_ID Price Make Model Engine_Displacement
VEHICLE
C_Vehicle_ID No_of_Passengers
CAR
T_Vehicle_ID Car_Type Capacity
TRUCK

17. 17
(a) Disjoint rule
Figure 3-7: Examples of disjointness constraints
Note: The diagram is incomplete. It is missing the subtype discriminator.

18. 18
Ch 4: Problems and Exercises 2b
Physician_ID
RESPONSIBLE_PHYSICIAN
Patient_ID Admit_Date Physician_ID
PATIENT
O_Patient_ID Checkback_Date
OUTPATIENT
R_Patient_ID
RESIDENT_PATIENT
Bed_ID
BED
Patient_Name
Date_Discharged Bed_ID

19. 19
Figure 3-9: Subtype discriminator (overlap rule)
Note: The diagram is incomplete. There should be unique attributes for the subtypes.

20. 20
Ch 4: Problems and Exercises 2c
Part_No Description Location Manufactured? Purchased? Qty_on_Hand
PART
M_Part_No
MANUFACTURED_PART
P_Part_No
PURCHASED_PART
P_Part_No Supplier_ID Unit_Price
SUPPLY_LINE
Supplier_ID Supplier_Name
SUPPLIER

21. 21
Figure 3-10: Example of supertype/subtype hierarchy
Note: The diagram is incomplete and missing the subtype discriminators.

22. 22
Ch 4: Problems and Exercises 2d
SSN Name Address Gender Date_of_Birth
PERSON
E_SSN Salary Date_Hired
EMPLOYEE
F_SSN Rank
FACULTY
S_SSN Position
STAFF
ALUMNUS
A_SSN
ST_SSN Major_Dept
STUDENT
UNDERGRAD
US_SSN Class_Standing
A_SSN Degree Year Date
DEGREES
GS_SSN Test_Score
GRADUATE

23. Ch 4: Problems and Exercises 13a
23
Parking Ticket table in 1NF

24. Ch 4: Problems and Exercises 13b
24
Functional Dependencies of the Parking Ticket table – 1NF
PARKING

25. Ch 4: Problems and Exercises 13c
25
Functional Dependencies of the Parking Ticket table – 2NF
STID

26. Ch 4: Problems and Exercises 13d
26
Functional Dependencies of the Parking Ticket table – 3NF
STID