Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Chapter 1, Problem 8HOA
Explanation of Solution
Entity Relationship model
- An entity-relationship model describes interrelated things of interest in a specific domain of knowledge.
- It is composed of entity types and specifie...
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A college offers correspondence courses to students. Each course lasts 20 weeks and is based on a weekly study module and progress test. At the end of the course students sit an invigilated examination.
The college Registrar deals with enquiries and applications, and students applying who have sufficient qualifications are asked to register by completing and submitting an application form.
After approval by the Academic Director, the application form is returned to the Registrar who creates a student file. The Accounts department receive the application form and using information from the student file creates an invoice that is sent to the student. Payments made are registered on the invoice file. The first batch of student material and tests is issued from the library only to students who have paid fees (this information is taken from the invoice file).
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Overview:
A famous factory has bought new machines for each one of its product lines. The manager of
the factory has decided to assign some workers from each product line to attend training
workshops in order to know how to use the new machines where workshops will be given by
engineers from the company manufactured the machines.
In this TMA, it is required to help the manager of the factory keep track of the workshops and
workers assigned to them.
Requirements:
After a quick meeting with the manager of the factory, you got the following information:
Each worker has a civil ID (which is unique), a name and cannot attend a workshop not
given to his/her product line.
Each engineer has a civil ID (which is unique), a name and other attributes (add at least 2
attributes from your choice). He/she could give more than one workshop.
There is a unique reference number for each workshop. Each workshop will be given by an
engineer and to a specific product line. Workers could be added or removed…
A student may register for classes during a specified registration period. To register, a
student must see their advisor. The advisor must approve each course that the student has
selected. The advisor will use the registration system to determine if the student has met the
course prerequisites, is in good academic standings and is eligible to register. If the advisor
approves the courses, the advisor enters the student's college id into the course registration
system. The course registration number for each course is entered. The course description,
course number and section for those courses will automatically display. The system will check
for schedule conflicts before saving the registrations. A bill for the courses will print in the
Bursar's office. The student should proceed to pick it up.
b)Draw a class diagrams which represents the generic objects and relationships described
above. Make c)sure to specify multiplicities for all associations shown in your diagrams.----
Chapter 1 Solutions
Oracle 12c: SQL
Ch. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Discuss the problems that can be caused by data...Ch. 1 - Explain the role of a primary key.Ch. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - What type of relationship can’t be stored in a...Ch. 1 - Identify at least three reasons an organization...
Ch. 1 - Prob. 1MCCh. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Which of the following has no partial or...Ch. 1 - Prob. 9MCCh. 1 - Which of the following has no partial dependencies...Ch. 1 - Which of the following has no repeating groups but...Ch. 1 - Prob. 12MCCh. 1 - Prob. 13MCCh. 1 - A unique identifier for a data row that consists...Ch. 1 - Which of the following symbols represents an...Ch. 1 - Prob. 16MCCh. 1 - Which of the following represents a field in a...Ch. 1 - Which of the following defines a relationship in...Ch. 1 - When part of the data in a table depends on a...Ch. 1 - Which of the following is used to join data...Ch. 1 - Which tables and fields would you access to...Ch. 1 - Prob. 2HOACh. 1 - Prob. 3HOACh. 1 - Prob. 4HOACh. 1 - Access path A database table is composed of...Ch. 1 - Prob. 6HOACh. 1 - Prob. 7HOACh. 1 - Prob. 8HOACh. 1 - Prob. 9HOACh. 1 - Prob. 10HOA
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