Object-based models - data models, Database Management System

Assignment Help:

Object-based Models: Use objects as key data representation components.

Examples:-

Entity-Relationship Model: It is a collection of real world objects known as entities and their relationships. It is largely represented in graphical form using E-R diagrams. This is very useful in Database design.
Object-Oriented Model: Tells the database as a collection of objects that haves both data members/values and operations that are allowed on the data. The constraints and interrelationships are executed through links, objects and message passing mechanisms. Object-Models are effective for databases where data interrelationships are difficult, for example, Computer Assisted Design based components.

Related Discussions:- Object-based models - data models

Update operations, The Update Operations : Update operations are used fo...

The Update Operations : Update operations are used for altering database values. The constraint violations faced by this operation are logically the similar as the problem faced

Computer, 1. Will you advise that your organization uses open source softwa...

1. Will you advise that your organization uses open source software and why? 2. Why is it important for business managers to have a basic understanding of the software development

Explain how the law ensures data protection and security, Question 1: (...

Question 1: (a) Explain the legal meaning of :- (i) Computer Service Person (ii) Data holding (b) Explain how the law ensures Data protection and Security. Qu

Inconsistent analysis-problems of concurrent transactions, Inconsistent Ana...

Inconsistent Analysis : The problem as given with transactions T1 and T2 where two transactions interleave to make incorrect result during an analysis by Audit is the instance of s

Define timestamp ordering, Define Timestamp ordering Ans In timestamp-b...

Define Timestamp ordering Ans In timestamp-based method, a serial order is made among the concurrent transaction by assigning to every transaction a unique nondecreasing number

Define an abstraction, Define an abstraction by which relationships are tre...

Define an abstraction by which relationships are treated as higher level entities Ans: Aggregation. It is an abstraction by which relationships are treated as higher level

What is data link layer, what is data link layer

what is data link layer

Explain tuple variable, Define tuple variable? Tuple variables are used...

Define tuple variable? Tuple variables are used for comparing two tuples in the same relation. The tuple variables are explained in the from clause by way of the as clause.

Er diagram, Draw an ER diagram for company''s database schema

Draw an ER diagram for company''s database schema

Create a data flow diagram, For your chosen project, you need to identify t...

For your chosen project, you need to identify the current problem that you wish your project to solve. Produce a Problem Statement. The Problem Statement should explain the purpo

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages