FINAL PAPER FP304 DATABASE SYSTEM

CONFIDENTIAL FP304 DATABASE SYSTEM

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SECTION A

OBJECTIVE QUESTIONS (50 marks)

INSTRUCTION:

This section consists of FORTY (40) objective questions. Answer ALL questions in the

answer booklet.

1. “A software system that enable user to define, create and maintain the database”.

This statement describes [CLO 1]

A. Oracle 10g

B. Microsoft Office Access 2007

C. Database Management System

D. Data warehouse

2. The function of a database is to ____________. [CLO 1]

A. collect and organize input data

B. check all input data

C. check all spelling

D. output data

3. Choose the software that is commonly used in database. [CLO 1]

A. Oracle

B. SQL Access

C. SQL desktop

D. Linux

4. Internal Schema is one of the three-schema architecture. Which one is true about

Internal Schema? [CLO 1]

A. It hides the details of physical storage structures and concentrates on

describing entities, data types, relationships, user operations, and constraints.

B. Uses a physical data model and describes the complete details of data storage

and access paths for the database.

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C. Implementation of data model

D. The part of the database that a particular user is interested in and hides the rest

of the database from user

5. A _____________ is the set of allowable values for one or more attributes.

[CLO 1]

A. Cardinality

B. Tuple

C. Degree

D. Domain

6. Within a table, the primary key must be unique so that it will identify each row. When

this is the case, the table is said to exhibit ________ integrity.

[CLO 1]

A. Referential

B. Entity

C. Enforced

D. Key

7. The data type of values that appear in each column is represented by

_________________ of possible values. [CLO 1]

A. Range

B. Product

C. Domain

D. Function

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8. Based on Figure 1, identify which one is the Candidate Key?

Figure 1 [CLO 1]

A. W

B. X

C. Y

D. Z

9. All companies operate four departments in their organization. This relationship

represents a _______________. [CLO 1]

A. one-to-one relationship.

B. one-to-many relationship.

C. many-to-one relationship.

D. many-to-many relationship.

10. __________________works on a single relation R and defines a relation that

constrains only those tuples (rows) of R that satisfy the specified condition

(predicate). [CLO 1]

A. Cartesian product

B. Difference

C. Selection

D. Intersection

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11. _________________ works on a single relation R and defines a relation that contains

a vertical subset of R, extracting the values of specified attributes and eliminating

duplicates. [CLO 1]

A. Projection

B. Cartesian Product

C. Difference

D. Intersection

12. The ______________set operator combines all tuples from two relations excluding

duplicates. [CLO 1]

A. Union

B. Intersect

C. Difference

D. Divide

13. The ___________ operator returns all tuples in one relation that are not found in other

relation. [CLO 1]

A. Intersect

B. Product

C. Select

D. Difference

14. What is meant by the term union compatibility? [CLO 1]

A. When two or more tables share the same number of columns

B. When two or more tables have the same degree

C. When two or more tables share the same domains

D. When two or more tables share the same number of columns and when they share

the same domain

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15. What is meant by the following relational algebra statement?

STUDENT x COURSE [CLO 1]

A. Compute the natural join between the STUDENT and COURSE relations.

B. Compute the left outer join between the STUDENT and COURSE relations.

C. Compute the Cross Product between the STUDENT and COURSE relations.

D. Compute the outer join between the STUDENT and COURSE relations.

Question 16,17 and 18 are based on Figure 2 :

Figure 2

16. A relational algebra operator applied to tables of EMPLOYEES and DEPARTMENT

produces the following result as in Table 1

Table 1

The operator is: [CLO 3]

A. An outer join operator

B. The project operator

C. The cross product operator

D. The natural join operator

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Table 2








Table 3






19. Which clause would you use in a SELECT statement to limit the display to those

employees whose salary is greater than 5000? [CLO 3]

A. WHERE SALARY > 5000

B. HAVING SALARY > 5000

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C. ORDER BY SALARY > 5000

D. GROUP BY SALARY > 5000

20.

You use this SQL statement to retrieve data from a table for ______________.

[CLO 1]

A. Viewing

B. Deleting

C. Inserting

D. Updating

21. Which are Data Manipulation Language (DML) statements?

i. SELECT

ii. ALTER

iii. DROP

iv. DELETE

[CLO 1]

A. i, iv

B. ii, iii

C. i, ii, iii

D. ii, iii, iv

22. What happens if the WHERE clause is omitted from a DELETE statement?

[CLO 1]

A. All records from the table are deleted

B. No record from the table will be deleted

C. First record of the table will be deleted

D. The statement will not be executed and will give a syntax error

SELECT *

FROM orders;

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23. You need to produce a report for mailing labels for all customers. The mailing label

must have only the customer name and address. The CUSTOMERS table has these

columns:

CUST_ID NUMBER(4) NOT NULL

CUST_NAME VARCHAR2(100) NOT NULL

CUST_ADDRESS VARCHAR2(150)

CUST_PHONE VARCHAR2(20)

Which SELECT statement accomplishes this task? [CLO3]

A. SELECT *FROM CUSTOMERS;

B. SELECT CUST_NAME, CUST_ADDRESS, CUST_PHONE

FROM CUSTOMERS;

C. SELECT CUST_ID,CUST_NAME,CUST_ADDRESS, CUST_PHONE

FROM CUSTOMERS;

D. SELECT CUST_NAME, CUST_ADDRESS

FROM CUSTOMERS;

24. Which INSERT statement is correct to insert a new row into table of employees?

A. INSERT INTO employees (employee_id) VALUES (1000);

B. INSERT INTO employees VALUES (NULL, ‘John’,

‘Smith’);

C. INSERT INTO employees (first_name, last_name) VALUES

(‘John’, ‘Smith’);

D. INSERT INTO employees (first_name, last_name,

employee_id) VALUES (100, ‘John’, ‘Smith’);

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25. How to select all the records from a table named ‘Persons’ where the value of the

column “FirstName” starts with an “a” using SQL statement? [CLO 3]

A. SELECT * FROM Persons WHERE FirstName LIKE ‘%a’;

B. SELECT * FROM Persons WHERE FirstName= ‘a’;

C. SELECT * FROM Persons WHERE FirstName LIKE ‘a%’;

D. SELECT * FROM Persons WHERE FirstName LIKE ‘%a%’;

26. In UPDATE statement, choose the correct answer to update firstname = Mary to

firstname = Marry from a table named "staff". [CLO 3]

A. UPDATE RECORD staff SET FName = 'Marry' WHERE LName = 'Mary';

B. UPDATE staff SET FName = 'Marry' WHERE LName = 'Mary';

C. UPDATE staff SET INTO FName = 'Marry' WHERE LName = 'Mary';

D. UPDATE RECORD staff SET INTO FName = 'Marry' WHERE LName = 'Mary';

27. A goal of normalization is to minimize _____________. [CLO 1]

A. the number of relationships

B. the number of entities

C. the number of tables

D. data redundancy

28. A table that satisfies 2NF ___________________. [CLO 1]

A. always satisfies 1NF

B. may violate 1NF

C. always satisfies 3NF

D. always satisfies BCNF

29. On an entity-relationship diagram, a diamond represents a ___________.

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[CLO 1]

A. multivalued attribute

B. data flow

C. entity

D. relationship

30. A person, place, object, event, or concept in the user environment about which the

organization wishes to maintain data refers to a(n): ___________________ .

[CLO 1]

A. Cardinality

B. Attribute

C. Relationship

D. Entity

31. When applying the optional 1-M relationship rule for converting an ERD into a

relational table design, which of the following statements is true? [CLO1]

A. Each 1-M relationship with 0 for the minimum cardinality on the parent side

becomes a new table.

B. The primary key of the new table is the primary key of the entity type on the child

(many) side of the relationship.

C. The new table contains foreign keys for the primary keys of both entity types

participating in the relationship.

D. Both foreign keys in the new table do not permit null values.

32. What type of relationship is expressed with the phrase "Student takes Class"?

[CLO 1]

A. 1 : M

B. M : 1

C. 1 : 1

D. M : N

33. When applying the M-N relationship rule for converting an ERD into a relational

table design, which of the following statements is true?

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i. Each M-N relationship becomes a separate table

ii. The foreign keys must not allow null values.

iii. The primary key of the table is a combined key consisting of the

primary keys of the entity types participating in the M-N relationship.

iv. The primary key of the table is the primary key of the entity type

participating in the M-N relationship which has the most attributes.

[CLO 1]

A. i,ii

B. i,iii

C. i,ii,iii

D. ii,iii,iv

34. Based on Figure 3 the BOOKS and MEMBER entities are related to each other. The

relationship on the MEMBER side indicates that:

Figure 3

[CLO 1]

A. A BOOKS may be borrowed by one or more MEMBER.

B. A MEMBER may borrow one BOOKS.

C. A BOOKS may be borrowed by zero or one MEMBER only.

D. A MEMBER may borrow zero or more BOOKS.

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35. Choose the correct Entity Relationship Model diagram based on the situation given.

“Each INSTRUCTOR may teach one or more CLASS”

“Each CLASS is taught by one INSTRUCTOR”

[CLO 1]

A.

B.

C. .

D.

36. ______________ refers to the requirement that other operations cannot access data that has

been modified during a transaction that has not yet been completed.

[CLO 2]

A. Consistent

B. Isolated

C. Durable

D. Atomic

C INSTRUCTOR CLASS teach

1 1

((0, N) (1,1)


(1,N) (1,1)

1 M


(0,1) (1,1)

1 1


(0,N) (1,1)

1 M

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37. _____________is the ability of the DBMS to recover the committed transaction updates

against any kind of system failure. [CLO 2]

A. Consistent

B. Isolated

C. Durable

D. Atomic

38. Deadlocks are possible only when one of the transactions wants to obtain a (n)

_________________ lock on a data item. [CLO 2]

A. Binary

B. Exclusive

C. Shared

D. Complete

39. Which of the following term below refers to the statement stated below?

[CLO 2]

A. Consistent

B. Durable

C. Atomic

D. Isolated

All of the tasks of a database transaction must be completed

If incomplete due to any possible reasons, the database transaction

must be aborted.


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40. If locking is not available and several users access a database concurrently, problems

may occur if their transactions use the same data at the same time. Concurrency

problems include

i. Lost or buried updates.

ii. Uncommitted dependency

iii. Inconsistent analysis

iv. Transaction Log

[CLO 2]

A. i

B. ii,iii

C. i,ii,iii

D. i,iii,iv


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SECTION B

STRUCTURED QUESTIONS (50 marks)

INSTRUCTION:

This section consists of TWO (2) structured questions. Answer ALL questions.

QUESTION 1

a) ANSI-SPARC Architecture, is an abstract design standard for a Database

Management System (DBMS), first proposed in 1975. Given ANSI-

SPARC architecture in Figure 1.1, explain each level.

Figure 1.1

[CLO 1]

(3 marks)

b) Database is a collection of persistent data that can be shared and

interrelated.

i. Explain TWO (2) properties of database.

ii. Explain TWO (2) features of Database Management System.

[CLO 1]

(4 marks)

[CLO 1]

(2 marks)

c) Illustrate THREE (3) most common relationships in E-R models.

[CLO 1]

(3 marks)


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STUDENT

STU_NUM STU_LNAME

321452 Bowser

324257 Smithson

ENROLL

CLASS_CODE STU_NUM ENROLL_GRADE

10014 321452 C

10014 324257 B

10018 321452 A

10018 324257 B

10021 321452 C

10021 324257 C

CLASS

CLASS_CODE CRS_CODE CLASS_SECTION CLASS_TIME CLASS_ROOM PROF_NUM

10014 ACCT-211 3 THUR, 2:30 - 3.45 PM BUS252 342

10018 CIT-220 2 MON, 9:00 - 9:50 PM KLR211 114

10021 QM-261 1 WED, 8:00 - 8:50 AM KLR200 114

d) Study the tables STUDENT, ENROLL and CLASS in Figure 1.2:

Figure 1.2

i. Determine primary key for each table

ii. Determine foreign keys for these tables

iii. Write suitable command to create a new table consisting of

class code, student number, class room and class time

[CLO 3]

(2 marks)

[CLO 3]

(2 marks)

[CLO3]

(4 marks)


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e) Draw the ER Diagram for relational schemes in Figure 1.3:

PRODUCT ( product_code, product_name, price, brand)

BUYS ( recipt_no, product_code, quantity, discount, sub_total)

RECIPT ( receipt_no, date, customer_no)

CUSTOMER ( customer_no, name, address, phone_no)

Figure 1.3

[CLO 3]

(5 marks)

QUESTION 2

a) i) Explain TWO (2) properties of database transaction.

ii) Explain TWO (2) types of recovery tools.

[CLO 1]

(4 marks)

[CLO 2]

(2 marks)

b) Identify THREE (3) DDL statements in SQL and the function of each

statement.

[CLO 1]

(3 marks)

c) Describe the terms below:

i. Normalization

ii. Second Normal Form (2NF)

iii. Third Normal Form (3NF)

[CLO 1]

(3 marks)


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d) Generate the output for the following SQL statements based on

Table 2.1.

Table 2.1

i. SELECT vehicleID, platNo, yearProduce, model

FROM vehicle

WHERE yearProduce >= 2000

ORDER BY yearProduce asc

ii. SELECT vehicleID, platNo, model

FROM vehicle

WHERE model LIKE “Perodua%”

iii. SELECT vehicleID, platNo, yearProduce

FROM vehicle

WHERE price < 20000

iv. SELECT SUM(price)

FROM vehicle

[CLO 3]

(2 marks)

(2 marks)

(2 marks)

(2 marks)


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e) Table 2.2 shows a list of patient appointments with the doctor. Each

patient is given the time and date of appointment with doctors in a particular

room. Show the steps on how you make the process of normalization stage 1NF,

2NF and 3NF.

Appointment

[CLO 3]

(5 marks)

Table 2.2

NoBilik

Tarikh Masa

AT020123 Kamal 1/12/2002 10.00 S15

AT00111 Jamaliah 1/12/2002 12.00 S15

CT00456 Sudin 1/12/2002 10.00 S10

CT00456 Sudin 14/1/2002 14.00 S10

AT00111 Jamaliah 14/1/2002 16.30 S15

AT00103 Abu 15/1/2002 18.00 S13

NamaPesakitTemujanji

8765 Shamsul

8602 Maizul

8111 Aziz

Staff# Nama_Doktor Pesakit#

FINAL PAPER FP304 DATABASE SYSTEM

Education

project operator

outer join operator

natural join operator

cross product operator

relational algebra operator

student x course clo

database management

input data