Explain how the associations are implemented as classes, Database Management System

Assignment Help:

Explain how the associations are implemented as classes.

A general approach in this case is to transform an association class into a simple class linked to two original classes with the two new associations, as shown in Figure.

 

2419_Transforming the association into a class.png

    

                   Figure: Transforming the association into a class


Related Discussions:- Explain how the associations are implemented as classes

Transaction states, The following variant of the primary copy asynchronous-...

The following variant of the primary copy asynchronous-update replication protocol has been proposed for totally replicated systems. (a)  A transaction executing at site A updat

Objectives-the structured query language, Objectives After reading this...

Objectives After reading this part, you should be able to: Modify, create, and delete database schema objects; Update database using SQL command; Retrieve data f

What is known as clustering file organization, What is known as clustering ...

What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.

I need help on the following 5 questions, 1. Define and discuss Work Breakd...

1. Define and discuss Work Breakdown Structure, Critical Path Analysis, PERT charts and GANTT charts. Describe the role of each in determining scope, budgets, and schedules? What

What is meant by the degree of relationship set, What is meant by the degre...

What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.

The sap profile parameter, While sorting, if the main storage available is ...

While sorting, if the main storage available is not enough, the system writes data to an external help file.  The SAP profile parameter, which determines DIR_SORTTMP

Differentiate sub-class and super-class, Differentiate sub-class and super-...

Differentiate sub-class and super-class? The specialization of a class is known as subclasses.eg: employee is a subclass of person and teller is a subclass of employee. Convers

Data models, why older data models are being replaced by new data models....

why older data models are being replaced by new data models.

Finkelstein methodology, PART MARKING: For this section, we will use part m...

PART MARKING: For this section, we will use part marking. This means we will supply model answers to all questions but we will only mark six questions. We will choose these randoml

Write the sql code, Express the following queries in SQL: (a) Write the...

Express the following queries in SQL: (a) Write the SQL code that will create ALL the four tables given in the appendix. Your answer should not contain the primary key and

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