Wednesday, January 5, 2011

Database & Datawarehouse

DATABASE :- Database is a collection of related information stored in a structured form in terms of table so that It makes easier insertion, deletion and mainupulation of data. database consist of tables that contain attributes.

DatawareHouse :- a data warehouse is a database system optimised for reporting.data warehousing involves architectures, methodologies and technologies that enable an organisation to better utilise its data in a way which minimises the load on source database systems. A data warehouse sources its data from the main operational systems but performs its own processing and stores the data efficiently to allow the data to be presented in the most usable format.
DATA WAREHOUSE is a subject oriented, integrated, non volatile collection of data in respect to the business process.,

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