Differance between internal and external schema, Database Management System

Assignment Help:

Differance between internal and external schema?

Internal and external schema: Internal Schema
• Describes the physical storage structure
• Uses a physical data model
External Schema
• Includes a number user views
• Uses a conceptual or an implementation data model

Related Discussions:- Differance between internal and external schema

Construct substantial data model, PART MARKING: We will only mark TWO of t...

PART MARKING: We will only mark TWO of the four questions below but you must submit answers to all four. We will choose the questions we mark randomly and we will supply you with

State the definition of association, State the definition of association ...

State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso

Record based logical models, Record based Logical Models: Use records as th...

Record based Logical Models: Use records as the key data representation components Examples: Relational Model: It shows data as well as relationship between data in the form

Define deadlock avoidance, Define Deadlock avoidance These protocols a...

Define Deadlock avoidance These protocols as well ensure that the system will never enter a deadlock state although the way it is done is different from deadlock prevention. I

Define the traditional system analysis and design, Define the Traditional S...

Define the Traditional System Analysis and Design Traditional System Analysis and Design (SAD) have three basic life cycle models. A typical software lifecycle consists of the

Oracle SQL Developer, Introductory course and so does not require any fancy...

Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.

Equijoin, When every condition appears with equality condition (=) only. c)...

When every condition appears with equality condition (=) only. c) Natural join (denoted by R*S) When two join attributes have the similar name in both relations. (Tha

Introduction to Database Design and Development, Every School has many teac...

Every School has many teachers and many students. Each student is assigned to one school and each teacher works for one school only. Each teacher teaches more than one subject but

What is nested trigger, What is Nested Trigger? A trigger can also havi...

What is Nested Trigger? A trigger can also having INSERT, UPDATE and DELETE logic within itself, so when the trigger is fired because of data modification it can also cause ano

Relational database design, how to find entities

how to find entities

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages