Draw entity-relationship diagram of database, Database Management System

Assignment Help:

Read the description below and draw an Entity-Relationship diagram for it. You must use the symbols described in the course materials.

This database will help the Parents Assocciation of the local school to manage their upcoming Summertime Fete. The main aim of the database is to manage aspects of the operation of the stalls.

1 PA members are represented in the database. Their name is used to identify them and their email address is also recorded.

2 All stall are given a unique title ("Bring and Buy", "Cakes", etc). The stall also has a location and the number of people required to operate it.

3 Stalls are sponsored by companies and local businesses. Each sponsor has a company name, contact number, contact person and their advertising slogan is included in the database (to be announced over the Public Address system on the day of the fete)

4 Companies usually sponsor many different stalls. The amount donated to each stall is recorded. Most stalls need sponsorsip from more than one company. Every company in the database must sponsor at least one stall.

5 Work times are 1 hour in duration. Each slot is known by its commencement time (eg "the 11AM slot"). No other information is recorded about time slots.

6 Members work on stalls in selected time slots. There are not restrictions on members working on stalls, etc except for one condition; for a given time slot, a member can only work on one stall.

7 At the fete, there are range of administrative jobs that need attending to. They are identified by the task. There is also a record of the equipment required for the task.

8 Some members will be assigned a job but no more than one job. Some jobs are complex and will need many people to complete them.


Related Discussions:- Draw entity-relationship diagram of database

Define boyce codd normal form, Define Boyce codd normal form A relation...

Define Boyce codd normal form A relation schema R is in BCNF with respect to a set F of functional dependencies if, for all functional dependencies in F + of the form.α ->β.

Maping constraits, #question.what is mapping constraints and types?.

#question.what is mapping constraints and types?.

MS Access 2010 - Form Updates Table, Hi there, Have an issue with my Databa...

Hi there, Have an issue with my Database. I have: TblOrderDetails and FmOrderDetails TblCircuit and FmCircuit Whenever I add data into the Form, it will update the table as expect

Describe association design of an object, Describe association design of an...

Describe association design of an object by giving one suitable example of it. The Design of Associations Associations are "glue" of advanced object oriented analysis and

What is a phantom deadlock, What is a Phantom Deadlock? In distributed...

What is a Phantom Deadlock? In distributed deadlock detection, the delay in propagating local information might cause the deadlock detection algorithms to recognize deadlocks

Explain hashing techniques, Explain Hashing techniques The hashing tech...

Explain Hashing techniques The hashing techniques can be categorized as: Static Hashing Techniques - In this method, the data can be viewed a collection of buckets, along with

Distinguish among a datareader class and a dataset class, Question (a) ...

Question (a) Concurrent access to data from a database is a normal part of application program usage. Describe three approaches to concurrency control (b) Distinguish among

Explain group by clause in sql, Explain group By clause in SQL? Group B...

Explain group By clause in SQL? Group By clause in SQL: The GROUP BY clause can be used in a SELECT statement to collect data across multiple records and group the results thro

What is oracle process explain for processes of oracle, What is Oracle Proc...

What is Oracle Process? Explain any four processes started by Oracle. Oracle Process is as follows: SMON: The System Monitor carries out a crash recovery while a crashed in

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd