+1-415-670-9189
info@expertsmind.com
Entity-relationship diagram
Course:- Database Management System
Reference No.:- EM13419




Assignment Help
Expertsmind Rated 4.9 / 5 based on 47215 reviews.
Review Site
Assignment Help >> Database Management System

Create an entity-relationship diagram and design accompanying table layout using sound relational modeling practices and concepts. The relationships between the entities and the attributes for the entities will be described. This database will provide the foundation for the follow-on project. The subsequent paragraphs provide the background and summary of the business requirements.

You are a database consultant with Ace Software, Inc. and have been assigned to prepare a database for the Mom and Pop Johnson video store in town. Mom and Pop have been keeping their records of videos and DVDs purchased from distributors and rented to customers in stacks of invoices and piles of rental forms for years. They have finally decided to automate their record keeping with a relational database.

1. Evaluate and list your entities. Then explain fully the relationships between entities via pairs of sentences that shows the two components of the total relationship in both directions between the entities. Relationships may be unary, binary, or ternary with respect to entities. You could not have any many-to-many relationships.

2. Begin the database logical design by identifying the entities, relationships between entities, and entities' attributes. Use the same entity/relationship diagram (ERD) notation as used in class for entities, attributes, and relationships. Sketch your ERD by hand or a drawing program (e.g., Visio, PPT, SQL Modeler ...) on one single 8-1/2" x 11" page (8-1/2" x 14" maximum), labeled "Mom and Pop Johnson Video Store Database E/R Diagram." Your ERD could not have any many-to-many relationships between entities.

3. Complete the logical database design and start the physical database design by preparing metadata documentation) that describes the table(s) created from each entity and thecolumn(s) created from each attribute in the ERD. Attributes could be self-describing. Particular attention will be given to the proper specification of all primary key (via "PK") and foreign key (via "FK") columns in the table layouts. These could match your ERD exactly. Begin these descriptions on a page labeled "Proposed Database Tables and Columns based on E/R Diagram." All tables must be 3rd Normal Form. Shows any and all assumptions that were made.




Put your comment
 
Minimize


Ask Question & Get Answers from Experts
Browse some more (Database Management System) Materials
Write SQL queries for the books database that perform each of the following tasks: Select all authors from the Authors table with the columns in the order lastName, firstName
Identify the potential sales and department store transactions that can be stored within the database. Design a database solution and the potential business rules that could
At the State Fair Pie Eating Contest all contestants in the heavyweight division must weigh within 30 pounds of 250 pounds. Write a program that asks for a contestant's weig
CSE 412: Database Management Fall 2016 Assignment. Considering the previous setting (relations A and B) with number of pages nA, nB and number of records per page pA and pB,
Provide what reports may be produced as a result of your database design.Based on the information you have researched, create a 2-3 page design document that includes a desc
Write a script that uses a cursor and dynamic SQL to output one row from each base user table in the AP database. Specifically exclude the tables named "dtproperties" and sy
In the Zhang & Huang (2007) article, the authors propose introducing a CLUSTER BY clause into SQL. What functionality does their proposed clause provide? How might your curr
Select one of the Real World Scenarios and use the experience you have that is related to the scenario you have chosen or research online; and then post your comments and so