# CIS336 iLab Week 1

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CIS336 iLab Week 1
In this exercise, you will analyze a de-normalized data set presented in the form of a spreadsheet. You will…

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## CIS336 iLab Week 1

CIS336 iLab Week 1

Normal Forms and Entity Relationship Diagrams Introduction A+

In this exercise, you will analyze a de-normalized data set presented in the form of a spreadsheet. You will next construct a series of dependency diagrams, transforming the evolving data model from First Normal Form (1NF), to Second Normal Form (2NF), and finally to Third Normal Form (3NF). When the model has reached 3NF, you will construct the Entity Relationship Diagram (ERD) depicting the logical design of the database. Your ERD will use Crow’s Foot notation to denote the relationships between tables.

Sample Exercise, With Solution

Before completing your lab, please review this example problem. The diagram below is a partial depiction of a business spreadsheet for a retail store operation. The store sells books. Books have a 13-digit International Standard Book Number (ISBN), a title, a publisher, and a unit price. Invoices track sales of books. An Invoice contains one or many line items, with each line item reflecting the sale of one or more copies of a specific book. Every publisher has a company name, and a publisher code.

 InvNum ISBN13 InvDate BookTitle PubCode PubName Qty unitPrice 1022 9781291940336 2015-03-09 MYSQL Functions 1001 Lulu.com 3 4.99 1022 9780321833877 2015-03-09 MySQL, Fifth Edition 1029 Addison-Wesley 5 33.95 1022 9781890774820 2015-03-09 Murach’s MySQL, 2nd Edition 1032 Murach, Mike & Associates, Inc 2 48.95