Category: Databases

1- 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.?
2- 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?
3- 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.
4- 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?

What different types of data make up “big data” for your chosen company? Describe the big data (what it is and how it is used). Big is a term that describes extremely large data sets that may be analyzed computationally to reveal patterns, trends, and associations. Examples of big data may include data in a company’s customer service department used to solve customer problems or a company’s use of stock market or competitive intelligence data to predict the future (Hint: You can find examples of big data used by the organization by reviewing data reports on the “Investors” or “Our Investors” tab of the organization’s website). Justify your answers. The company selected is Toyota.
Please attach the article used.

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.
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You must use this template, failing which will result in zero mark.
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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.
2 Marks
Learning
Outcome (1):
Explain the concepts and
architectures involved in the database development.
Question One
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:
2 Marks Learning Outcome(4): Instructors: Create Entity-Relationship model, Relational model, and write SQL queries. Question Two
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
2 Marks
Learning Outcome(1):
Instructors: Explain the concepts and architectures involved in the database development.
Question Three
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:
2 Marks
Learning Outcome(5):
Instructors: Design a database starting from the conceptual design to the implementation of database schemas.
Question Four
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:

Fundamentals of Databases (IT-403)
Discussion Board

Purpose:
Learning to design the database.
Discussion Topic:
As we explore the world of database systems, let’s investigate the various phases involved in the process of database design. What are the key steps and considerations in each phase, starting from conceptualization to implementation? Please share examples or case studies that illustrate the significance of each phase in creating a well-structured and efficient database. Moreover, how do these design phases contribute to the overall success of database systems in terms of performance, scalability, and data integrity?
Submission Instructions
Post your responses on this topic on the blackboard.
You are required to write at least ONE original post and ONE response commenting on the posts uploaded by your friends.
Total Marks Allotted: 4 Marks
Due Date: 13th, February 2024

Marking Criteria
For your Original Post, including examples: 1.5 post + 1.5 examples
For your one response: 1 (for meaningful feedback to at least one classmate)

Discussion Board
Purpose:
Learning to design the database.
Discussion Topic:
As we explore the world of database systems, let’s investigate the various phases involved in the process of database design. What are the key steps and considerations in each phase, starting from conceptualization to implementation? Please share examples or case studies that illustrate the significance of each phase in creating a well-structured and efficient database. Moreover, how do these design phases contribute to the overall success of database systems in terms of performance, scalability, and data integrity?
Submission Instructions
Post your responses on this topic on the blackboard.
You are required to write at least ONE original post and ONE response commenting on the posts uploaded by your friends.
Total Marks Allotted: 4 Marks

Discussion Board
Purpose:
Learning to design the database.
Discussion Topic:
As we explore the world of database systems, let’s investigate the various phases involved in the process of database design. What are the key steps and considerations in each phase, starting from conceptualization to implementation? Please share examples or case studies that illustrate the significance of each phase in creating a well-structured and efficient database. Moreover, how do these design phases contribute to the overall success of database systems in terms of performance, scalability, and data integrity?
Submission Instructions
Post your responses on this topic on the blackboard.
You are required to write at least ONE original post and ONE response commenting on the posts uploaded by your friends.
Total Marks Allotted: 4 Marks
Due Date: 13th, February 2024
Marking Criteria
For your Original Post, including examples: 1.5 post + 1.5 examples
For your one response: 1 (for meaningful feedback to at least one classmate

Fundamentals of Databases (IT-403)
Discussion Board

Purpose:
Learning to design the database.
Discussion Topic:
As we explore the world of database systems, let’s investigate the various phases involved in the process of database design. What are the key steps and considerations in each phase, starting from conceptualization to implementation? Please share examples or case studies that illustrate the significance of each phase in creating a well-structured and efficient database. Moreover, how do these design phases contribute to the overall success of database systems in terms of performance, scalability, and data integrity?
Submission Instructions
Post your responses on this topic on the blackboard.
You are required to write at least ONE original post and ONE response commenting on the posts uploaded by your friends.
Total Marks Allotted: 4 Marks
Due Date: 13th, February 2024

Marking Criteria
For your Original Post, including examples: 1.5 post + 1.5 examples
For your one response: 1 (for meaningful feedback to at least one classmate)

Discussion Board
Purpose:
Learning to design the database.
Discussion Topic:
As we explore the world of database systems, let’s investigate the various phases involved in the process of database design. What are the key steps and considerations in each phase, starting from conceptualization to implementation? Please share examples or case studies that illustrate the significance of each phase in creating a well-structured and efficient database. Moreover, how do these design phases contribute to the overall success of database systems in terms of performance, scalability, and data integrity?
Submission Instructions
Post your responses on this topic on the blackboard.
You are required to write at least ONE original post and ONE response commenting on the posts uploaded by your friends.
Total Marks Allotted: 4 Marks

Discussion Board
Purpose:
Learning to design the database.
Discussion Topic:
As we explore the world of database systems, let’s investigate the various phases involved in the process of database design. What are the key steps and considerations in each phase, starting from conceptualization to implementation? Please share examples or case studies that illustrate the significance of each phase in creating a well-structured and efficient database. Moreover, how do these design phases contribute to the overall success of database systems in terms of performance, scalability, and data integrity?
Submission Instructions
Post your responses on this topic on the blackboard.
You are required to write at least ONE original post and ONE response commenting on the posts uploaded by your friends.
Total Marks Allotted: 4 Marks
Due Date: 13th, February 2024
Marking Criteria
For your Original Post, including examples: 1.5 post + 1.5 examples
For your one response: 1 (for meaningful feedback to at least one classmate

Purpose
The purpose of discussion board activity is familiarized student with the significance of Enterprise Systems.
Action Items
· Access the discussion forum for this assignment by clicking on the discussion forum title.
· Click on “Create Thread.”
· Enter a title for your response in the “Subject” line.
· Type your response into the message field to the following discussion prompt:
Discussion Question:
Enterprise systems play a pivotal role in enhancing business processes. Give any three reasons if you agree or disagree by using your own words.
Submission Instructions
· Post your responses, examples, ideas, and discussions on this topic on blackboard.
· Respond to two other classmates’ postings by critically reviewing your classmate’s answer and stating which points you agree or disagree with.
· Short responses such as “I agree”, “I disagree”, “You are right”, “Very good answer”, etc., are NOT acceptable. You need to be critical with some substance.
· Post your answer and your comments on your classmates on or before 02/12/2024 @ 11:59 PM.
Grading Criteria (4 Mark)
3 marks: for posting your answer.
0.5 mark: for each response to another classmate posting (2 * 0.5= 1 mark)
Important notice
A copy/paste from the Internet will lead to a ZERO mark.