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COMP2350 Database Modelling and Design

Question

Answered

Tasks:

Task 1 Conceptual data model
Add a screenshot of your conceptual data model in the form of an enhanced ER (EER) model (the model must be legible, when zoomed in). Note that you should not show the foreign keys in the EER model.
 
Identify and justify the use of, if any, generalization /specialisation, weak entity types, and attributes on relationships.  
List your assumptions (if any, a maximum of five) over and above what was provided in the problem domain description. 

Task 2: Logical data model
Add a screenshot of your logical data model
Discuss how you translated the conceptual data model into the logical data model
You may refer to specific translation / conversion rules discussed in the lectures

COMP2350 Database Modelling and Design

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Your assignment 1. Imagine you choose a relational database to store the data from the classified adverts website. a. List the entities and relationships in the scenario described above and draw an ER diagram to represent them. You may use any valid notation you like, but you should include a key t ...

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This document should cover but not limit to the following points:  What is system development approach was used (agile or other traditional approaches) for your project and why this approach is used?  What are the functional requirements? Data requirement description, including either st ...

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Task: 1.Personal Insurance, Inc. is a national company that insures homeowners and renters. It also offers umbrella policies that provide additional coverage. As a regional manager, you need to be able to query the database to help make decisions and to answer questions from other employees.  Cre ...

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Write SQL statements to answer the following questions from the ‘assignment5’Database: Answer all questions1.    List all the record/s in the vendor table that do not have a value for the attribute V_STATE.2.    Find the customers whose balance is greater th ...

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