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

Transaction, .#question. Discuss the problem which may arise during concurr...

.#question. Discuss the problem which may arise during concurrency control and recovery in distributed database which are not encountered in controlized database environment.

What is data model explain object and data base models, What is data model?...

What is data model? Explain object based and record based data models? Ans: A data model is an abstract model in which describes how data is represented and accessed. (i)

HRM, is Chipo carrying his baby

is Chipo carrying his baby

Hierarchical model is also known by, Hierarchical model is also known by? ...

Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.

Candidate keys, Super keys of a relation can have extra attributes. Candida...

Super keys of a relation can have extra attributes. Candidate keys are minimal super key, i.e. such a key have no extraneous attribute. An attribute is known as extraneous if even

Why do you go for sorting your query results, Why do you go for sorting you...

Why do you go for sorting your query results? SQL SELECT command to fetch data from MySQL table. Whenever you select rows, the MySQL server is free to return them in any order

Give a sample of the dynamic model, Give a sample of the Dynamic Model. ...

Give a sample of the Dynamic Model. The sample of dynamic model is given below:  Dynamic model for the car: Brake and Accelerator            Brake or Applies Accelerator

The maximum no of key fields that can be used in a header, The Maximum no o...

The Maximum no of key fields that can be used in a header is?? 50

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