CIS 515 Week 7 Assignment 6 Sql Concepts And Database Design (2 Paper CIS 515 Week 7 Assignment 6 Sql Concepts And Datab | Page 2

• Department (DepartmentID, DepartmentDescription)
• Job (JobID, JobDescription)
• Customer (CustomerID, CustomerName, CustomerAddress, CustomerPhone)
Write a three to four (3-4) page paper in which you:
1. Create a data dictionary that includes the following:
1. A description of the content for each field
2. The data type of each field
3. The format the data will be stored as in the field
4. The range of value for the field
5. 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.
2. 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:
1. 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.
2. Construct a query to show the expected payment date if invoices are due within 30 days of
transaction.
3. Construct a query that will show distinct area codes of the customers.
3. Create a plan of the necessary activities that would be required to implement a valid
database design process by including the following:
1. Steps in the conceptual design stage
2. Steps in DBMS selection stage
3. Steps in logical design stage
4. Steps in physical design stage
5. Task details of each activity within each stage