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College of Computing and Informatics
Assignment 1
Deadline: Tuesday 5/3/2024 @ 23:59
[Total Mark for this Assignment is 8]
Student Details:
Name: ###
ID: ###
CRN: ###
Instructions:
• You must submit two separate copies (one Word file and one PDF file) using the Assignment Template on
Blackboard via the allocated folder. These files must not be in compressed format.
• It is your responsibility to check and make sure that you have uploaded both the correct files.
• Zero mark will be given if you try to bypass the SafeAssign (e.g. misspell words, remove spaces between
words, hide characters, use different character sets, convert text into image or languages other than English
or any kind of manipulation).
• Email submission will not be accepted.
• You are advised to make your work clear and well-presented. This includes filling your information on the cover
page.
• You must use this template, failing which will result in zero mark.
• You MUST show all your work, and text must not be converted into an image, unless specified otherwise by
the question.
• Late submission will result in ZERO mark.
• The work should be your own, copying from students or other resources will result in ZERO mark.
• Use Times New Roman font for all your answers.
Question One
Pg. 01
Learning
Outcome (1):
Explain the
concepts and
architectures
involved in the
database
development.
Question One
2 Marks
List the three main types of constraints in the relational model and explain each in your
own words. List the Basic operations for changing the database and explain why the
DELETE operation may violate only the referential integrity and not the entity
constraint.
Answer:
Question Two
Pg. 02
Learning
Outcome(4):
Instructors:
Create EntityRelationship
model, Relational
model, and write
SQL queries.
Question Two
2 Marks
Your client, a retail company, has approached you for assistance in optimizing their
inventory management system. They need a database schema to track product inventory,
suppliers, and orders efficiently. Design an Entity-Relationship (ER) diagram to
represent this system, considering the following entities and their attributes:
•
Product: Attributes may include ProductID, Name, Description, Price, and
Quantity.
•
Supplier: Attributes may include SupplierID, Name, Contact, Address.
•
Order: Attributes may include OrderID, Date, and TotalAmount.
•
OrderDetails: This is a relationship entity representing the details of each order,
such as the quantity of each product ordered.
Consider the relationships between these entities and ensure that your ER
diagram reflects these connections accurately. Your diagram should illustrate
how products are supplied by suppliers, how orders are placed, and the details
associated with each order.
Answer
Question Three
Pg. 03
Learning
Outcome(1):
Instructors:
Explain the
concepts and
architectures
involved in the
database
development.
Question Three
2 Marks
Identify and explain the various types of database users and their roles in a
database system. Choose one type of user (e.g., end-users, database
administrators, application programmers) and elaborate on the specific tasks and
responsibilities associated with that user role. Discuss how the interaction of
different user types contributes to a database system’s overall functionality and
efficiency. Finally, provide a real-world example or case study where the
collaboration of different types of database users played a crucial role in the
success or failure of a database project. Ensure your response reflects a deep
understanding of the roles and responsibilities of database users.
Answer:
Question Four
Pg. 04
Learning
Outcome(5):
Instructors:
Design a
database starting
from the
conceptual design
to the
implementation of
database
schemas.
Question Four
2 Marks
You are tasked with designing a conceptual database schema for the
King Fahad General Hospital. The system needs to store information
about Patients, Doctors, Departments, and Medicines. Explain in detail
the fundamental database concepts you would consider during the
design phase. Discuss the importance of entities, attributes, and
relationships. Additionally, outline your proposed database architecture’s
potential challenges and benefits, considering factors such as scalability
and data integrity.
Answer:
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