Assignment 6: SQL Concepts and Database Design Solution

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 work for a finance industry-based organization. Your  organization is looking to submit its database design documentation to  an evaluation team in order to meet Sarbanes-Oxley (SOX) compliance. You  have been assigned to assist in preparing the documentation of the  organization’s sales database. You are asked to propose a data  dictionary that can be used to document the following:




Employee (EmpNumber, EmpFirstName, EmpLastName, CommissionRate, YrlySalary, DepartmentID, JobID)
Invoice (InvNumber, InvDate, EmpNumber,  InvAmount, CustomerID)
InvoiceLine (InvLineNumber, InvNumber,  ProductNumber, Quantity)
Product (ProductNumber, ProductDescription, ProductCost)
Department (DepartmentID, DepartmentDescription)
Job (JobID, JobDescription)
Customer (CustomerID, CustomerName, CustomerAddress, CustomerPhone)
Write a three to four (3-4) page paper in which you:




Create a data dictionary that includes the following: A description of the content for each field
The data type of each field
The format the data will be stored as in the field
The range of value for the field
A label, as required, if the attribute is a primary key or foreign key
Note: An example is shown in Table 7.3 in chapter 7 of the textbook.




Imagine  that you are asked to identify the number of days that exist between  the first invoice and last invoice for each month and complete the  following: Construct  a query that will show the number of days that exist between the first  invoice and last invoice, for each month, for each employee, using the  DATEDIFF function. Be sure to provide the SQL script that will carry out  this function.
Construct a query to show the expected payment date if invoices are due within 30 days of transaction.  
Construct a query that will show distinct area codes of the customers.
Create  a plan of the necessary activities that would be required to implement a  valid database design process by including the following: Steps in the conceptual design stage
Steps in DBMS selection stage
Steps in logical design stage
Steps in physical design stage
Task details of each activity within each stage
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.
The specific course learning outcomes associated with this assignment are:




Design a relational database so that it is at least in 3NF.
Prepare  database design documents using the data definition, data manipulation,  and data control language components of the SQL language.
Explain the key principles of data security and identify data security risk and violations in data management system design.
Use technology and information resources to research issues in the strategic implications and management of database systems.
Write  clearly and concisely about topics related to the strategic planning  for database systems using proper writing mechanics and technical style  conventions.
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