Give an example of object representation, Database Management System

Assignment Help:

Give an example of Object Representation 

For illustration, consider the implementation of a social security number within an employee object that is shown in Figure. The social security number attribute could be implemented as a string, an integer or as an association to a social security number object, that itself can contain whether an integer or a string. Defining a new class is more flexible, but often introduces needless indirection. It is suggested that new classes must not be defined unless there is a definite requirement.

2343_Alternative representations for an attribute.png

Figure: Alternative representations for an attribute


Related Discussions:- Give an example of object representation

Describe database state in details, Describe Database state in details? ...

Describe Database state in details? Database state: The actual data within the database at a particular moment in time is known as a database state.

.DBMS, please describe the data base management with the easy example &giv...

please describe the data base management with the easy example &give the application?

Explain authorization and integrity manager, Explain Authorization and Inte...

Explain Authorization and Integrity Manager ? Authorization and Integrity Manager: Tests for the satisfaction of integrity constraints and checks the authority of users to acce

Explain the use of constraints in functional model, Explain the use of cons...

Explain the use of constraints in functional model with suitable example. A constraint shows relationship between two objects at same time, or   among various values of the sam

What is a name, What is a Name? A user-supplied name is used for identi...

What is a Name? A user-supplied name is used for identity. This form of identity is used for files in file systems. The user gives every file a name that uniquely identifies it

Differentiate between logical database design and physical, Differentiate b...

Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas

What is entity in dbms, What is entity in DBMS? Entity: A DBMS entity i...

What is entity in DBMS? Entity: A DBMS entity is either a thing in the modelled world or a drawing element in an ERD.

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