The need for three level architecture, Database Management System

The need for three level architecture

The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.

  • Support of multiple user views: Every user is able to access the similar data, but have a different customized view of the data. Every user should be able to change the way he or she analysis the data and this change should not affect other users.
  • Insulation between user programs and data that does not concern them: Users should not directly govern with physical storage details, such as hashing or indexing. The user's interactions with the database have to be independent of storage considerations.

 

Posted Date: 3/5/2013 5:05:09 AM | Location : United States







Related Discussions:- The need for three level architecture, Assignment Help, Ask Question on The need for three level architecture, Get Answer, Expert's Help, The need for three level architecture Discussions

Write discussion on The need for three level architecture
Your posts are moderated
Related Questions
Problem : AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P

sql is relationally complete-justify

Problem: (a) Briefly explain the ‘Hierarchical Database Model' using appropriate diagram. (b) List and briefly describe five potential benefits of the database approach comp


Need for Multiple Access Paths In practice, most of the online information systems need the support of multi-key files. For example, consider a banking database application hav

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

basic structure of xml

List the data structures implemented by the storage manager. The storage manager executes the following data structure a) Data files b) Data dictionary c) indices

What is conceptual model ? A conceptual model is a independent of both hardware and software.

Define the terms i) DDL ii) DML DDL: Data base schema is particular by a set of definitions expressed by a special language known as a data definition language. DML: A data