CIS
515 Assignment 5 Tour Operator Agency Database
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.
A multinational tour operator agency
has gained new business growth in the North American market through the use of
social media. Its operation has expanded by 50% within six months and the
agency requires an enhanced data management strategy to sustain their business
operations. Their existing data repository for its reservation processing
system is limited in business intelligence and reporting functionalities. The
tour operator seeks a database management specialist to assist them in
leveraging their data sources to enable them to forecast and project tour sales
appropriately.
Imagine that you have been hired to
fulfill their need of enhancing the data repository for their current
reservation processing system. Upon reviewing the system, you find that the
data structure holds redundant data and that this structure lacks
normalization. The database has the following characteristics:
- A table that stores all the salespersons. The
table holds their employee id, first name, last name and “Tours sold”
field. The “Tours sold” field is updated manually.
- A table that stores tour customer data and tours
sold. The table holds customer name, address, city, state, zip code,
tour(s) selected, number of persons in tour, and total amount paid. The
current structure will show the customer more than once, if the customer
books multiple tours.
- A tour table that is used as a tour rate sheet
which holds the tours offered and the cost per person. Tour rates vary
every three (3) months depending on the tourist season.Write a three to
four (3-4) page paper in which you propose an enhanced database management
strategy. Your proposal should include the following:
- Design a data model that will conform to the following
criteria:
- Propose an efficient data structure that may hold the
tour operator’s data using a normalization process. Describe each step of
the process that will enable you to have a 2nd Normal Form data
structure.
- Create naming conventions for each entity and
attributes.
- Conclude your data model design with an Entity
Relationship Model (ERM) that will visually represent the relationships
between the tables. You may make use of graphical tools in Microsoft Word
or Visio, or an open source alternative such as Dia. Note: The
graphically depicted solution is not included in the required page
length.
- Construct a query that can be used on a report for
determining how many days the customer’s invoice will require payment if
total amount due is within 45 days. Provide a copy of your working code as
part of the paper.
- Using the salesperson table described in the summary
above, complete the following:
- Construct a trigger that will increase the field that
holds the total number of tours sold per salesperson by an increment of
one (1).
- Create a query that can produce results that show the
quantity of customers each salesperson has sold tours to.
- Support the reasoning behind using stored procedures
within the database as an optimization process for the database
transactions.
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