The following data structure and constraints exist for a magazine publishing company. In this lab, you will address the associated problems associated with our textbook reading. In addition to this, you will create an architectural design for the company.

a. The company publishes one regional magazine each in Florida (FL), South Carolina (SC), Georgia (GA), and Tennessee (TN).

b. The company has 300,000 customers (subscribers) distributed throughout the four states listed.

c. On the first of each month, an annual subscription INVOICE is printed and sent to each customer whose subscription is due for renewal. The INVOICE entity contains a REGION attribute to indicate the customers state of residence (FL, SC, GA, TN):

CUSTOMER (CUS_NUM, CUS_NAME, CUS_ADDRESS, CUS_CITY, CUS_STATE, CUS_ZIP, CUS_SUBSDATE)

INVOICE (INV_NUM, INV_REGION, CUS_NUM, INV_DATE, INV_TOTAL)

Note, as a base database creation script, you can use the Chapter 8 SaleCo database.

The company is aware of the problems associated with centralized management and has decided that it is time to decentralize the management of the subscriptions in its four regional subsidiaries of Florida (FL), South Carolina (SC), Georgia (GA), and Tennessee (TN). Each subscription site will handle its own customer and invoice data. The management at company headquarters, however, will have access to customer and invoice data to generate annual reports and to issue ad hoc queries, such as:

List all current customers by region.

List all new customers by region.

Report all invoices by customer and by region.

1) Given these requirements, how must you partition the database?

2) What recommendations will you make regarding the type and characteristics of the required database system?

3) What type of data fragmentation is needed for each table?

4) What must be the criteria used to partition each database?

5) Design the database fragments. Show an example with node names, location, fragment names, attribute names, and demonstration data.

6) What type of distributed database operations must be supported at each remote site?

7) What type of distributed database operations must be supported at the headquarters site?

8) Briefly research a network architecture that would support the distributed database operations between Florida (FL), South Carolina (SC), Georgia (GA), and Tennessee (TN).

Assume Florida is the headquarters. Design a network architecture diagram that includes the

1) high-level routing between the sites that must occur across the Internet,

2) information security between the sites,

3) high-level switching within the internal network that hosts the database servers,

4) application servers that access the database,

5) the database servers,

6) the storage for the physical database, transaction logs, and redo logs.