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Relational Database Design
The following question is based upon the Patient-Treatment relation which records the details of transactions occurring in a medical surgery. You may assume the data are representative.
You have been asked to design a relational database for this system. You know that there are problems with the current design and that it will need to be modified in order to work effectively. You need to write a 1-2 page report that addresses the following: 1. What are the specific problems associated with the current design and why do they arise? 2. How would you change the current design and how does your new design address the problems you have identified with the current design. In order to receive high marks for this question, you will need to demonstrate an understanding of the theories discussed in Topics 1, 2 and 3, how they apply to this problem, and justify the changes you are making to the system. Simply providing the amended design (even if it is correct) will only attract a small percentage of the marks for this question.
Using data mining, it is possible to gather information which has been buried that can be manipulated and cross indexed which could be a valuable information gathering technique for entities.
Imagine that you have been hired to fulfill their need of enhancing the data repository for their current reservation processing system. Upon reviewing the system, you find that the data structure holds redundant data and that this structure lacks..
Provide an Entity Relationship Model (ERM) that will describe the data structure that will store all data elements.Note:The graphically depicted solution is not included in the required page length.
List the details of any works of art (including the Artist who created the work) that have more than one copy recorded in the database.
Explain the content of this document in natural language;Design the graph representation of document;
Analyse and comprehend a provided ER diagram and Database Schema and implement a database based on the provided ER diagram and Database Schema
Explain how you will visually represent the data for the sales of the individual stores and for the time period shown. You want to show the change in sales for each store over time for the past three years.
The relations given below keep track of airline flight information:Flights(flno: integer, from: string, to: string, distance:integer, departs: time, arrives: time, price: real)Aircraft(aid: integer, aflame: string, cruisingrange: integer)
Create mission statements and mission objectives for database systems explained in the following case study EasyDrive School of Motoring. Also in mission objectives include 10 reports that the database system must support
Draw the dependency diagram after identifying all dependencies in this data structure. See Lecture 6, Slide 27 for dependency diagram and convert this data structure to a set of 3NF relations. Clearly showing each step
Describe the entity-relationship model. How are entities, relationships, and attributes represented in this model? What is a composite entity? Describe the approach to diagrams that uses a crow's foot.
For the following requirements analysis description, develop an Entity-Relationship Diagram as a conceptual model that captures all of the requirements to the fullest extent possible.
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