One of the biggest problems of the mining industry is that companies collect and store enormous amount of data which has little or no use to the end users. Data warehouses are the best way to solve this issue.
Data warehouses are computer based information systems that store the data that is collected from other applications or from external sources. Data warehouses are usually maintained on a separate database management system to avoid impacting the operational systems. This also helps to keep a separate historical record of changing data, and to reduce the time required to conduct analyses. Data warehouses are the central point of data integration for business intelligence. In a data warehouse, databases are used to support management decisions by allowing them to make analyses and access necessary information through the use of OLAP cubes, Reporting Services and Data Mining.