Insulation between conceptual and physical structures, Database Management System

Assignment Help:

Insulation between conceptual and physical structures

It can be defined as:

1. The Database Administrator should be capable to vary the storage structures without affecting users' views.

2. The internal structure of the database should be unaffected by the varies to the physical aspects of the storage, like changing to a new storage device.

3. The DBA should be able to vary the conceptual structure of the database without affecting all users.

 


Related Discussions:- Insulation between conceptual and physical structures

What is substitutability, What is substitutability? Any method of a cla...

What is substitutability? Any method of a class-say A can equally well be adjured with any object belonging to any subclasses B of A. This characteristic leads to code reuse, a

Database project, A database to track your progress in your college program...

A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c

Strong entity set and weak entity set, Strong entity set and weak entity se...

Strong entity set and weak entity set? Strong entity set and weak entity set: A strong entity set has a primary key. All tuples in the set are distinguishable through that key.

What is management system, What is Management System? A management syst...

What is Management System? A management system is a set of rules and process which help us to create organize and manipulate the database. It also helps us to add, change delet

What are partial and natural key, What are partial, alternate,, artificial,...

What are partial, alternate,, artificial, compound and natural key? Partial Key: It is a set of attributes that can uniquely recognize weak entities and that are related to s

ERD, #question.ERD of any car

#question.ERD of any car

What are the parts of sql language, What are the parts of SQL language? ...

What are the parts of SQL language? The SQL language has various parts: data - definitition language  Data manipulation language  View definition  Transaction contr

Creating views with read only option-data control, Creating views with Read...

Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.

BI, (a) Why did SAP introduce the extended star schema?

(a) Why did SAP introduce the extended star schema?

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