Download CSCI485 File and Database Management

Spring 2004
CSCI485 File and Database Management
Professor: Bahram Zartoshty
Assignment 1 – part I
Introduction
The purpose of this assignment is to exercise your knowledge of conceptual and logical
database design. This and the next two assignments guide you on how to design and
implement a relational database using Microsoft Access and C#.
Assignment 1 consists of two parts:

Part 1, E-R model and logical data design:
Based on a description of an application, draw its E-R diagram. Next, reduce the
E-R diagram to a collection of tables. Realize these tables using Microsoft Access
and C#.
Part 1: Conceptual and logical data design
1. Conceptual data design: Draw the E-R diagram of a database in support of
the following application.
With the growing popularity of the stock market, we want to build a database to
keep track of different stocks. The objective is to maintain the basic information
about the company, its ticker symbol (also termed stock symbol), and the price of
the stock over time. In this application, every company has a unique ticker
symbol. For example, MSFT is the stock symbol of Microsoft Corporation. For
each company, the database must maintain the current price, the 52-week high
price, and the 52-week low price. Moreover, for each company, the database must
maintain the company name, the address of its headquarters, the URL of its web
site, the CEO’s name, and the number of employees. Each ticker symbol is traded
at one market. For example, AOL (America Online) is traded at New York Stock
Exchange (NYSE) while MSFT (Microsoft) is traded at Nasdaq. Each market has
a unique index name (e.g., NYSE, Nasdaq). The database must maintain the value
of each index. Every business day, the stock will have a closing price and
exchange volume. The database must maintain this information for each stock.
Each company is allowed to issue stock with one ticker symbol. The stock of a
company is traded at only one market. And each market may trade stocks
belonging to many different companies. Each stock has a set of history price and
volume of different day.
(Hint: History Price is a weak entity set, and date is the discriminator.)
2. Logical database design: Reduce your E-R diagram to tables in Microsoft
Access 2000.
After you finish drawing the E-R diagram, reduce it to tables. Create a database
using Microsoft Access 2000 and write a C# program to build the tables into it
without data. When reducing the E-R diagram to tables, consider the possibility of
combining tables in order to eliminate redundant table(s).
3. Deliverables:



Conceptual data design: draw the E-R diagram for this application. (35%)
Logical data design: Reduce your E-R diagram to a collection of table
specifications. (30%)
Physical data design: C# program to generate your table schemas in Microsoft
Access. (35%)
Format: Electronically submit a Word file of the E-R diagram, tables, the C#
program to realize your schema, and the database files (.mdb).
Due date: Thursday, 12 February 2004
Reference:

Database System Concepts; 4th edition, Silberschatz-Korth-Sudharshan, Mc
Graw Hill, ISBN 0-07-228363-7

Microsoft Access 2000 At a Glance, Microsoft Press, ISBN 1-57231-946-1

Microsoft Access online help