THE STUDY ON DATA WAREHOUSING DIFFERENT CONCEPTS

Abstract

A data warehouse is a repository for all the data which is
composed by an organization in various functioning systems; it can be
either physical or logical. It is an integrated nonvolatile and time variant
collection of data which helps in making decisions for organization success.
The data warehouse is focused on very few aspects.
In this paper we are discussing data warehouse design and its usage.
Lets look at different approaches to the data warehouse design and its
usage process and all the steps involved. Data warehouse can be built using
a bottom up approach, top down approach or a combination of both.