ICT285 Databases

ICT285 Databases
Final Examination Jan Trimester, 2022

Student Name:

Student Number:

Instructions:

  • Download this document to your own computer
  • Rename the file as ICT_285_Final_Exam_TJ2022_StudentID_FirstName_LastName.docx where StudentID is your student ID and FirstName and LastName are your first and last names
  • Enter your Name and Murdoch student number in the space above
  • Type your answers beneath the questions
  • Make sure you save the document often while you are working on it
  • When you are completed, upload the document to the Final Examination area on the LMS.

Please remember that while the exam is ‘Open-book’, the questions are not written in such a way so as they can simply be googled, or the answers found in the textbook or lecture slides.

Most questions ask you to explain a concept using the example provided. For example, you are not asked for a definition of what a Primary Key is, but you might be given a relation and asked to explain what a primary key is using that relation as an example.

Spending too much time trying to find the answers to these questions will result in you quickly running out of time.

We take academic integrity seriously. Trying to find out the answers from your classmates or friends is 1) an academic misconduct, and 2) unwise as it will waste the time you have to complete the paper.

All submitted exams will be checked using text matching software.

The exam contains 6 questions, and the marks are distributed as follows:

QuestionTotal marksStudent’s mark
Question 110 
Question 220 
Question 315 
Question 415 
Question 525 
Question 615 
TOTAL (out of 100)100 


QUESTION 1 (10 MARKS)

Read the following scenario and answer ALL questions. Your explanations MUST be entirely based on the provided relation.

A company uses below “Inventory” database to record data about their IT equipment. The database is mainly used to store data about two types of hardware: Laptops and Printers. The company stores data on the vendor (manufacturer), Asset_ID (unique number of the asset), Asset_type (i.e., laptop or printer), L_ram (RAMs for laptops), L_screen (screen size of laptops), P_type (Printer type i.e ink_jet, laser, etc..), P_Colour (colour of printer), and Prices of assets.

Inventory Database (unpopulated with data):

VendorAsset_IDAsset_TypeL_ramL_ScreenP_TypeP_ColourPrice
       
  1. Explain what are the major concerns or problems associated with this database design. Provide examples of these problems, your explanation should be entirely based on the above relation. (3 marks)
  • How would you change the design above to address the problems you have identified? Make sure you provide the new design, define the primary keys (by underlying the attributes that are primary keys), define the foreign keys (by indicating them in bold). (4 marks)
  • Consider the following SQL query and explain what information will be retrieved when it’s executed (1.5 marks). As the DBA in this company, explain what you can do to restrict access to this retrieved information for a specific group of users (*hint you should provide an SQL query to support your response) (1.5 marks).  (3 marks total)

SELECT R1.P_Type

FROM Printer R1

WHERE NOT EXISTS

(SELECT *

FROM Printer R2

WHERE R1.price > R2.price)

QUESTION 2 (20 MARKS)

The following tables form part of a database held in a relational DBMS (Primary Key, Foreign Key):

Book (Book­_ID, Publisher, Type, Year, Edition, Price)

Employee (Employee_No, FirstName, LastName, Role)

EmployeeBook (Book_ID, Employee_No, Date_Taken, Date_Returned)

Provide the SQL for the following queries:

  1. List the numbers of Books taken by each IT Officer 
  2. Show the employees who have taken more than two Books
  3. List the maximum number of Books taken by any Employee
  4. Show the Employees who are Managers and have not taken any Book
  5. List the full details of the most expensive as well as the cheapest Book

QUESTION 3 (15 MARKS)

Give the relational algebra (not SQL) expressions for each of the queries in Question 2:

  1. List the numbers of Books taken by each IT Officer 
  2. Show the employees who have taken more than two Books
  3. List the maximum number of Books taken by any Employee
  4. Show the Employees who are Managers and have not taken any Book
  5. List the full details of the most expensive as well as the cheapest Book

QUESTION 4 (15 MARKS)

Convert the following relation into a relation or set of relations in at least 3NF:

NameAddressContactBookingIDDate_fromDate_toRegoMadeYearRateOfficeIDAddress
JackHay st.015926B00919-2-2121-2-21C201BMW202050L1Monk st
CharlieRea st.032569B003 B004  30-1-21 30-1-215-2-21 7-2-21B302 T210Suzuki BMW2021 201830 50L2 L2Bland st Bland st
Jack Kings st.087954B00610-2-2119-2-21C265HondaTwenty Twenty45L1Monk st
AliKings st.052949NA1-12-999931-12-9999NANA99990NANOT

QUESTION 5 (25 MARKS)

  • Create an ERD from the given case below using the Crow’s Foot notation
  • Use Visio or any other appropriate tool to create the ERD and legend, it should be clear, readable, concise, and complete. Attention to the naming of entities and overall presentation.
  • If you prefer, sketch it on a paper first as a draft. Note, a hand drawn ERD will not be accepted.

Your client is a company that supplies building materials.  The company want you to design a stock order database (they keep none or very little stock on hand).  Once this database is implemented, your client will then integrate it into its existing invoice system.

After interviewing members of the organisation, you have accumulated the following information:

Your client keeps track of its customer’s details, including their name, address and contact details, which includes multiple phone numbers.  Each customer has a unique number (CustID) and a nominated discount rate, which is applied to the list price of any product they purchase.

Customers purchase products from the company by placing an order, which has a unique number (OrderNo) and the date the order was placed.  An order may be for many products.  Each product has a unique product number (ProductNo), a description and a list price.

When a customer’s order is assembled (i.e., is complete), it is sometimes collected from the company by the customer, in which case no other documentation is required.  Alternatively, a customer’s order may be dispatched to a specified location (a delivery site) via a nominated freight company.  For each jobsite, your client records the name of the delivery site, the address and multiple phone numbers. The delivery site is not unique to, nor owned by, the customer, for example, many customers may have their deliveries sent to a particular mine site.

Your client has their own consignment book, which the nominated freight company’s driver signs and dates when an order is collected.  A unique consignment note number (ConNote) is provided for each delivery.  An order is not dispatched until it is completed (i.e., an order is only ever dispatched once).

A customer can have multiple orders for a particular delivery site, and different freight companies may deliver these orders.  This depends on the availability of the delivery vehicles, the size of the order and when the order is ready to be dispatched.

Your client keeps a record of the details of the various freight companies it uses, including their name, account number, address and contact details, which include multiple telephone numbers.

Each freight company has different vehicle types available, such as utilities, flatbeds, semitrailers, enclosed vans, etc.  The vehicle type used for a delivery depends upon where the order is going and what size the order is.

QUESTION 6 (15 MARKS)

Read the below scenario and answer ALL the following questions:

A tourist arrives in Perth city on a leisure trip. They are looking to visit Rottnest Island by taking the ferry. There are different ports for departure/arrival. Consider the transaction where this tourist (now customer) wants to book a ferry that goes from port A to port B on a given date and time.

  1. Explain step-by-step the different steps that are needed in order to update the database when a customer books a ferry. (7 marks)
  • Assuming that multiple customers can access the booking system from different locations. Identify the major issue that may arise in this situation.  (2 marks)
  • In each of the situations below, the users are accessing the same data at the same time. Which of the situations could give rise to a major problem? You should name the Major problem and fill in the provided table using X in relevant cell). (3 marks)
SituationYesNo
3 users executing SELECT statements
2 users executing SELECT statements
1 user executing an INSERT statement
2 users executing SELECT statements
1 user executing an UPDATE statement
3 users executing UPDATE statements
  • Using the transactions table above as an example, explain the concepts of Atomicity and Isolation. (3 marks)

****** END OF PAPER ******

Order Now

Get expert help for ICT285 Databases and many more. 24X7 help, plag free solution. Order online now!

Universal Assignment (February 6, 2023) ICT285 Databases. Retrieved from https://universalassignment.com/ict285-databases/.
"ICT285 Databases." Universal Assignment - February 6, 2023, https://universalassignment.com/ict285-databases/
Universal Assignment July 28, 2022 ICT285 Databases., viewed February 6, 2023,<https://universalassignment.com/ict285-databases/>
Universal Assignment - ICT285 Databases. [Internet]. [Accessed February 6, 2023]. Available from: https://universalassignment.com/ict285-databases/
"ICT285 Databases." Universal Assignment - Accessed February 6, 2023. https://universalassignment.com/ict285-databases/
"ICT285 Databases." Universal Assignment [Online]. Available: https://universalassignment.com/ict285-databases/. [Accessed: February 6, 2023]

Please note along with our service, we will provide you with the following deliverables:

Please do not hesitate to put forward any queries regarding the service provision.

We look forward to having you on board with us.

Get 90%* Discount on Assignment Help

Most Frequent Questions & Answers

Universal Assignment Services is the best place to get help in your all kind of assignment help. We have 172+ experts available, who can help you to get HD+ grades. We also provide Free Plag report, Free Revisions,Best Price in the industry guaranteed.

We provide all kinds of assignmednt help, Report writing, Essay Writing, Dissertations, Thesis writing, Research Proposal, Research Report, Home work help, Question Answers help, Case studies, mathematical and Statistical tasks, Website development, Android application, Resume/CV writing, SOP(Statement of Purpose) Writing, Blog/Article, Poster making and so on.

We are available round the clock, 24X7, 365 days. You can appach us to our Whatsapp number +1 (613)778 8542 or email to info@universalassignment.com . We provide Free revision policy, if you need and revisions to be done on the task, we will do the same for you as soon as possible.

We provide services mainly to all major institutes and Universities in Australia, Canada, China, Malaysia, India, South Africa, New Zealand, Singapore, the United Arab Emirates, the United Kingdom, and the United States.

We provide lucrative discounts from 28% to 70% as per the wordcount, Technicality, Deadline and the number of your previous assignments done with us.

After your assignment request our team will check and update you the best suitable service for you alongwith the charges for the task. After confirmation and payment team will start the work and provide the task as per the deadline.

Yes, we will provide Plagirism free task and a free turnitin report along with the task without any extra cost.

No, if the main requirement is same, you don’t have to pay any additional amount. But it there is a additional requirement, then you have to pay the balance amount in order to get the revised solution.

The Fees are as minimum as $10 per page(1 page=250 words) and in case of a big task, we provide huge discounts.

We accept all the major Credit and Debit Cards for the payment. We do accept Paypal also.

Popular Assignments

Monash University Assignment Help by Universal Assignment

Introduction: Monash University is one of the largest and most prestigious universities in Australia, known for its high-quality education and research programs. As a student pursuing higher education at Monash University, you may often find yourself struggling with various assignments, projects, and essays. This is where Universal Assignment can help

Read More »

Griffith College Assignment Help Service by Universal Assignment

Introduction: Griffith College is a well-established institution that offers a range of academic programs to students. However, completing assignments can be a challenging task for many students, especially when they have multiple assignments to complete within a limited time frame. This is where Universal Assignment comes in as a one-stop

Read More »

1803NRS Foundations of Professional Nursing Assessment

AIM: The primary aim of assignment 2 is to give further opportunity to develop academic writing skills while exploring topics that are integral to developing your understanding of the Registered Nurse (RN) role. This assignment aligns with course learning outcome 1. “Discuss how nurses engage with the historical, political and

Read More »

2810NRS Child and Family Nursing Practice

2810NRS Child and Family Nursing Practice A2, Trimester 2, 2021 Written assignment: “Nursing Process applied to a Family” Word Count: 1500 words. Weighting: 40 % Marks 40 The aim of this written assessment item is to apply the nursing process in providing family centred care. When individuals experience a health

Read More »

Assessment 1: Situation Analysis

Assessment 1: Situation Analysis Assessment Details: Length/Duration: 1,200 words (maximum)Weight: 30% Due date: 11.59PM (AEST), 5 September 2021 (Week 6) Description: Students are to develop a situation analysis of a good/service from a selected advertising campaign. You are aiming to develop an understanding of the product and audience factors underpinning

Read More »

Aboriginal and Torres Strait people’s health and wellness

UNIT Name: Aboriginal and Torres Strait people’s health and wellness  Reflective piece  Length: 1090 words  Use headings provided below.MS Word documents only. No Table of contents. Ensure appropriate use of Aboriginal and Torres Strait Islander terminology as per SNM guidelines above Your reference list must contain minimum 10 references, 7

Read More »

Assessment 2: Additional Information Sheet with Questions and Answers

COMMUNITY MANAGEMENT AND ORGANISATIONS 101644 – Spring 2021 Assessment 2: Additional Information Sheet with Questions and Answers This document is to provide summary and additional information on the second assignment for Community Management and Organisations. It is designed to complement the information provided in the Learning Guide. Students should also

Read More »

NUR3101 Primary Health Care in a Global Context

NUR3101 Assessment 2: Assignment Task overview Course NUR3101 Primary Health Care in a Global Context Assessment name Written Assignment Brief task description This assignment requires you to write an ESSAY analysing the Sustainable Development Goal 3 within a selected country and discuss the role of primary health care in achieving

Read More »

NURBN 1017 Written Analysis of case Based Scenario

NURBN 1017 Assessment task 3: Written Analysis of case Based Scenario Submission Date: (Week 6 of semester) 31st August 2021 by 23:59 via Turnitin Word count: (1500 words +/-10%) Weighting: 40% of overall course grade Purpose: This report is designed to develop capacity to identify, research and critically analyse the

Read More »

NURBN 1017 Written Analysis of case Based Scenario

NURBN 1017 Assessment task 3: Written Analysis of case Based Scenario Example Submission Date: (Week 6 of semester) 31st August 2021 by 23:59 via Turnitin Word count: (1500 words +/-10%) Weighting: 40% of overall course grade Report Format: The report format must include an introduction, conclusion, reference list and use

Read More »

Assessment 2 – Poster

7201NRS Trimester 2, 2021 Assessment 2 – Poster Poster: A4 digital Weighting: 40% /40 Due Date: by 5pm, 13th Sept 2021 (Week 8) Aim: The aim of this poster is to develop your ability to educate your colleagues about evidence-based practice related to the management of high acuity clients, including

Read More »

Medical Assignment 1 Essay Help

ASSESSMENT 1 – ESSAY Learning outcomes – 1, 3 4 & 5 1750 words  For this assessment you are required to demonstrate your knowledge of: A: The principals and models of clinical governance in the Australian health care setting (LO 1 & 4). B: Relate how organisational culture, leadership and

Read More »

Assignment: Ethics of Genetic Testing

The genetic testing assignment requires you to identify a number of ethical issues present and several stakeholders affected within the given scenario. The aim of the assignment is to learn about different genetic tests and how they might affect people, the regulatory and legal framework. In any given scenario, there

Read More »

NSB204 MENTAL HEALTH: Self and Others

Assessment Task 2 Assessment name: Case Study Task description: This assignment aims to help you to begin to use your professional and clinical judgement to think like nurses working in a mental health setting and/or in relation to the mental health needs of people regardless of the setting.   Choose

Read More »

PSY1022: Psychology 1B School of Psychological Sciences

Title of your Proposal Your Name School of Psychological Sciences, Monash University PSY1022: Psychology 1B Your Tutors Name Day Month, YearWord Count: XXXX Abstract Your abstract text goes here. Abstract must be a single paragraph, flushed left and between 150-200 words. This word limit should be strictly adhered to. If

Read More »

Assessment 2: Problem Solving Exercise

LWS101, Semester 2 2021 Assessment 2: Problem Solving Exercise Due Date: Thursday 16 September 2021 at 11:59pm (note that you must submit your assignment online, via the submission link, before midnight – late submissions will not be marked and you will be awarded a grade of 0, in accordance with

Read More »

MBA404 Consumer Behaviour and Marketing Psychology

Assessment 2 Information Subject Code: MBA404 Subject Name: Consumer Behaviour and Marketing Psychology Assessment Title: Sample Survey Assessment Type: Length: Individual case study analysis 4 pages (no more) Weighting: 35% Total Marks: Submission: 100 Online Due Date: Week 9 Your task Individually, you are required to prepare a four-page written

Read More »

NUR133 ASSESSMENT 2 – Digital Presentation

NUR133 ASSESSMENT 2 – Digital Presentation (500 words + 10-minute presentation) TASK Select a service or program designed to improve the health outcomes of Aboriginal and/or Torres Strait Islander people and prepare a poster presentation that could be used to develop a brief, engaging education session for your peers. In

Read More »

Graduate Program Credit Assessment

Assessment summary Reflective essay (1500 words x 4) (70%) ·                  Verbal and written case presentation (2 x 15%) (30%) ·                  Clinical portfolios x 2 Alignment with learning outcome(s): (Associated Study Day: Family consultation) (Associated training: RiSCE) Assessment Tasks Assessment title: 1500 word essays (x4) Essay Topics: Essay 1: Psychopharmacology Due

Read More »

MGMT2007 Organisational Behaviour

2021, MGMT2007 Organisational Behaviour 3,000-word Major Essay Pick ONE of these major essay questions to write an essay: Topic 1: Dealing with problems in an organisation under organisational change Example Scenario: Organisation X has implemented some drastic organisational changes recently. As a result, some of its employees have been laid

Read More »

Self- reflective – Critical Reflection on Case Study

Resit Assessment Point 2: Written Assignment / Self- reflective – Critical Reflection on Case Study ASSESSMENT BRIEF AND MARKING RUBRIC Module title: Managing strategy, operations and partnerships (SG7001) Assessment point: Resit Assessment point 2 (Week 12) Assessment task: Reflective Writing Word count limit: 1500 words +/- 10% (excluding references and

Read More »

Managing strategy, operations and partnerships (SG7001)

ASSESSMENT BRIEF AND MARKING RUBRIC Module title: Managing strategy, operations and partnerships (SG7001) Assessment point: Resit Assessment point 1 (Week 6) Assessment task: Report Word count limit: 4500 words +/- 10% (excluding references and appendices) Procedure in the event of illness or other valid cause (extenuating circumstances) If you believe

Read More »

Righteous Bean policies and procedures

Instructions to Students: You need to implement and review the three (3) resource plans you developed in Assessment 2 for this assessment task. use the scenario provided in Appendix A to complete this assessment task.  You will also need to refer to the Righteous Bean policies and procedures in Appendix

Read More »

Righteous Bean policies and procedures

Instructions to Students: You need to develop three (3) resource plans for this assessment task.   For those who do not have access to a workplace at this time, use the scenario provided in Appendix A to complete this assessment task.  You will also need to refer to the Righteous

Read More »

Managing human and physical resources Questions-Answers

When managing human and physical resources, name two (2) pieces of federal legislation (including the year) that need to be considered. Explain the purpose of each         :Acquisition and allocation of the resources.Timelines aligned with business strategies.Contingency plans and processes.Defined costs and budgets.        

Read More »

Righteous Bean simulated environment provided in Appendix  A

Assessment Task This task can be completed in your workplace or using the Righteous Bean simulated environment provided in Appendix A,   If you are planning to complete this task using your own workplace, you must contact your Assessor to discuss the suitability of your organisational documents and situation.  Part A – Implementing the

Read More »

Righteous Bean simulated environment

Assessment Task This task can be completed in your workplace or using the Righteous Bean simulated environment provided in Appendix A, B and C. If you are planning to complete this task using your own workplace, you must contact your Assessor to discuss the suitability of your organisational documents and situation.  You may

Read More »

Basic accounting principles applicable to the financial management

Assessment Instructions Review the questions below and answer all short answer questions in the space provided. Provide a definition, in your own words, for each of the following basic accounting principles applicable to the financial management of a budget – Double Entry Bookkeeping, Principle of Control, and Revenue Recognition (cash

Read More »

Develop critical and creative thinking concepts and skills

Assessment Instructions Completing this Assessment allows you to show your skills and knowledge in developing critical thinking in others. This Assessment will require you to complete the following tasks: Part A: Develop critical and creative thinking concepts and skills in others through providing and facilitating an opportunity to apply these

Read More »

Critical and Creative Thinking in the Workplace

Assessment Instructions: Completing this assessment allows you to show your skills and knowledge in developing critical thinking in others. This assessment will require you to complete the following tasks: Part A: Develop and conduct a survey to determine individual and team knowledge gaps in critical thinking concepts and practices Part

Read More »

Can't Find Your Assignment?

Open chat
1
Free Assistance
Universal Assignment
Hello 👋
How can we help you?