Comments on: C2028 Database Management System Term 3 2008 Assignment, part 1

By: admin

admin — Mon, 22 Feb 2010 02:46:29 +0000

Hi Angel,

I dont do any database assignment about airline reservation
but if you have assignment about airline reservation maybe I can help you if you have doubts or questions
maybe you can kindly post the scenario and questions here and indicate which part you need clarifications

By: angel

angel — Sun, 21 Feb 2010 15:38:45 +0000

can u send database assignment on airline reservation

By: admin

admin — Wed, 03 Feb 2010 14:30:09 +0000

Hi Dave,

I think the entities should be:
1. Product
2. Component
3. Vendor
4. Customer
5. Transaction

Or you can leave out the transaction and make it only 4 entities for the ER Diagram

By: Dave

Dave — Wed, 03 Feb 2010 13:35:10 +0000

Yeah. i’ve posted my question. im lost as how many entities shld it be. regards.

By: admin

admin — Wed, 03 Feb 2010 12:41:47 +0000

Hi Dave,
I am not online often. I will try to help you from here..

By: admin

admin — Wed, 03 Feb 2010 12:40:46 +0000

Hi Dave,
I am not online often, but I can help you from here.

By: Dave

Dave — Wed, 03 Feb 2010 08:14:00 +0000

Assume you are working for an Electronic Store in Singapore city, and you have been assigned with task
of developing a conceptual design and to implement it. Your task is to design a database that allows you
to capture the facts described below:
Electronic Store produces three high-cost, low-volume products: P1, P2, and P3. Product P1 is
assembled with components C1 and C2; product P2 is assembled with components C1, C3, and
C4; and product P3 is assembled with components C2 and C3.
Components may be purchased from several vendors, as shown in the table with
Component/Vendor summary given below:
VENDOR COMPONENTS SUPPLIED
V1 C1, C2
V2 C1, C2, C3, C4
V3 C1, C2, C4
Each product has a unique serial number, as does each component. Customers purchase either
component separately or assemble the product by themselves.
To keep track of product performance, careful records are kept to ensure that each product’s
components can be traced to the component supplier.
Products are sold directly to final customers; that is, no wholesale operations are permitted.
The sales records include the customer identification and the product serial number.
For the above given scenario, draw an ER Diagram, using Crow-Foot notation, with the following
requirements:
a. Show the complete set of structural constraints (multiplicity, cardinality, participation);
b. Add the necessary attributes to each entity aside from those mentioned above; kindly distinguish
one attribute to another (primary key, foreign key, additional attributes); and
c. Provide reasonable assumptions to support your diagram. You may refer to the expected
deliverables given in Task 3 and make assumptions accordingly.

How im gonna start about? regards.

By: Dave

Dave — Tue, 02 Feb 2010 09:53:56 +0000

Hello Thomas, i need help with my ERD assignment. possible to talk to you over msn or smth? regards.

By: admin

admin — Mon, 11 Jan 2010 15:27:54 +0000

Hi Ugochi, Yes I havent got time to write again. I think I will do a lot of update by February

By: ugochi

ugochi — Thu, 07 Jan 2010 02:18:21 +0000

hello thomas. i just found out about this blog. n i think its very helpful. i am a nigerian student n i just started my IADIC courses. but im having problem with the project course (C2006). how come u didnt update it? please reply n help. thanks. u can reply the message into my mail. bye