Determine and explain the factors necessary to ensure referential integrity.

 
Assignment 2: Database Systems and Database Models
Due Week 2 
The  Strayer Oracle Server may be used to test and compile the SQL Queries  developed for this assignment. Your instructor will provide you with  login credentials to a Strayer University maintained Oracle server.
Imagine  that you have been hired as a consultant to assist in streamlining the  data processing of an international based organization that sells  high-end electronics. The organization has various departments such as  payroll, human resources, finance, marketing, sales, and operations. The  sales department is the only department where employees are paid a  commission in addition to their yearly salary and benefits. All other  departments compensate their employees with a yearly salary and benefits  only. Commission is paid by multiplying the employee’s commission rate  by the total amount of product units sold. You have access to the  following data sets:

Employee (EmpNumber, EmpFirstName, EmpLastName, CommissionRate, YrlySalary, DepartmentID, JobID)
Invoice (InvNumber, InvDate, EmpNumber,  InvAmount)
InvoiceLine (InvLineNumber, InvNumber,  ProductNumber, Quantity)
Product (ProductNumber, ProductDescription, ProductCost)
Department (DepartmentID, DepartmentDescription)
Job (JobID, JobDescription)

Write a two to three (4-5) page paper in which you:

Design  a query that will allow the finance department to determine the  commissions paid to specific employees of the sales department for the  month of December. Note: You will need to generate the  tables described above (Employee, Invoice, InvoiceLine, Product,  Department, and Job) in order to compare and validate your code.  Validated query code must be part of your paper.
Compare  the code of the query you designed in Question one (1) to one that  would show how much total compensation is paid to each employee for the  same month.
Determine and explain the factors necessary to ensure referential integrity.
Create  an object-oriented model to show how the tables are interrelated  through the use of graphical tools. Make sure that you are able to show  the relationship types such as 1:M, 1:1, or M:1. Additionally, remember  to include the determined factors from the previous assignment  requirement. Note: The graphically depicted solution is not included in the required page length.
Identify  which data components are the entities and attributes, and the  relationship between each using an object representation diagram through  the use of graphical tools. Note: The graphically depicted solution is not included in the required page length.
Describe how Big Data could be used to assist in the productivity and forecasting of the organization’s products and resources. 

Your assignment must follow these formatting requirements:

Be  typed, double spaced, using Times New Roman font (size 12), with  one-inch margins on all sides; citations and references must follow APA  or school-specific format. Check with your professor for any additional  instructions.
Include  a cover page containing the title of the assignment, the student’s  name, the professor’s name, the course title, and the date. The cover  page and the reference page are not included in the required assignment  page length.
Include  charts or diagrams created in Excel, Visio, MS Project, or one of their  equivalents such as Open Project, Dia, and OpenOffice. The completed  diagrams / charts must be imported into the Word document before the  paper is submitted.

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