DATA WAREHOUSING SYSTEM - A CASE STUDY
A data warehouse is a system which is used for storing a large accumulated data from a wide range of sources within a company or an industry which is used us to guide us how to manage a decision. It is also known as an enterprise data warehouse which is generally used for broadcasting and for the data analysis. Data Warehouse is a central archive of unified data from different contrasting authority. Data Warehouse provides the prevailing and historical data to store the data which is used for the creation of the detailed report which is then used for the best knowledge of the workers through the company or an enterprise. It provides a copy of information from transaction systems and maintains the data even when the source transaction systems don't have it. There is a common data model which is provided by data warehouse for the storage of all the data regardless of the data's source.