User Account

All Pages

eer diagram, Database Management System

Assignment Help:
Design an EER schema for the following application and
translate the EER schema into relational schemas (and
constraints). It is possible that some requirements cannot
be captured by the EER schema and some constraints
in the EER schema cannot be captured in your relational
schemas. Identify these and describe them in succinct
manner if there are any. List additional reasonable assumptions
if you definitely need them
The facilities consist of a number of sports complexes.
A sports complex has a unique address, and
has an area.
 Sports complexes are divided into two types: the
single sport type and the multi-sport type. No other
types of sports complex exist.
 Each multi-sport complex is partitioned into different
parts; each part has a location indicator (e.g.
center, NE corner, ...) indicating where it is within
the complex; each such part is allocated to exactly
one sport.
 Each complex has exactly one chief organizing person.
 Each complex will hold a number of events (e.g. different
stages of swimming competitions).
 Each event is identified by an event ID, and for each
event there is a planed date, duration, number of
participants, number of officials, and so on.
 We want to keep track of which officials participate
in which event. (But for simplicity we do not keep
track of the sport persons in the event.)
 There are two types of persons that we want to keep
track of: Organizing persons, and Officials. Each
person is identified by a person ID, and has a name
and sex.
 Different equipments are needed for different events.
We are only interested in equipments that are needed
by at least one event.

Related Discussions:- eer diagram

Linked list, what is difference between circular inked lust and grunded lin...

what is difference between circular inked lust and grunded linked list

File sharing, random file sharing

random file sharing

Which language used in application programs for request data, Which languag...

Which language used in application programs to request data from the DBMS is referred? Language which is used in application program is DML to request data from the DBMS is ref

List the drawbacks of relational database system, List the drawbacks of rel...

List the drawbacks of relational database system A) Repetition of data B) Inability to s certain information.

Fragmentation, let us consider a table having 2200 records and the fixed si...

let us consider a table having 2200 records and the fixed size of the table to be considered as 25.then how many numbers of table is requredto perform horizontal fragmentation

Design a gennalization and specialization hierarchy for an a, Design a genn...

Design a gennalization and specialization hierarchy for an automobile sales company

What is trigger, What is trigger Triggers are statements that are imple...

What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.

Define the term- making common behaviour abstract, Making Common Behaviour ...

Making Common Behaviour Abstract Let us define abstraction "Abstraction means to focus on the necessary, inherent aspects of an entity and ignoring its accidental features". O

What is the use of group by clause, What is the use of group by clause?  ...

What is the use of group by clause?  Group  by  clause  is  used to apply  aggregate  functions  to a  set  of  tuples. The attributes given in the group by clause are used to

Explain transaction manager and their work, Explain Transaction manager and...

Explain Transaction manager and their work? Transaction Manager: Ensure the database remains in a constant (correct) state despite system failure, and in which concurrent trans

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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