Discuss the concept of data independence, Database Management System

Assignment Help:

Question:

a) Discuss the concept of data independence, explaining its importance in a database environment.

b) To address the issue of data independence, the ANSI-SPARC three-level architecture was proposed. Compare and contrast the three levels of this model. Make use of a diagram in your discussion.

c) The term integrity refers to the accuracy or correctness of the data in the database. Define the following terms:

(i) Domain Integrity
(ii) Entity Integrity
(iii) Referential Integrity

Related Discussions:- Discuss the concept of data independence

What function divides one numeric expression, What function divides one num...

What function divides one numeric expression by another and returns the remainder? MOD function divides one numeric expression by another and returns the remainder.

DBMS , need a DBMS system on any data for assignment.

need a DBMS system on any data for assignment.

Name the metrics for selecting top algorithm, Name the metrics for selectin...

Name the metrics for selecting top algorithm There are a number of metrics for selecting top algorithm: i) Computational complexity: Computational complexity refers to eff

Php optimization on iis 8, Project Description: We have purchased facebo...

Project Description: We have purchased facebook style chat software which we are using with our site. It is prepared in PHP but the rest of the site is developed asp.net. Iss

Production management, create an er diagram for production management in fi...

create an er diagram for production management in film industry

Creating views with replace option, Creating views with Replace option : Th...

Creating views with Replace option : This option is used to alter the definition of the view without recreating and dropping it or regranting object privileges previously granted o

Determine that the checkpoints are a part of, 1. Determine that the Checkpo...

1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures

What is a foreign key, What is a foreign key, and what is it used for? ...

What is a foreign key, and what is it used for? A foreign key is used to establish relationships between relations in the relational model. Technically, a foreign key is a colu

Identify the critical activities, Consider a systems development project wi...

Consider a systems development project with the following data Activity Duration (weeks) Precedence Relationship 1. Software design

Get details of employee working on both comp354 and comp345, Consider the r...

Consider the relations EMPLOYEE(emp#, name) ASSIGNED_TO(project#, emp#) PROJECT(project#, project_name, chief) Express the subsequent queries in Relational Algebra (i) Ge

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages