Companies can achieve a competitive advantage from the deployment of a data warehouse. Data warehouse combines data from data sources and then combines them into one consolidated location. They can increase product usage, identify account health, optimize operations, monitor and modify marketing campaigns and even track annual recurring revenue. Some benefits of data warehousing are: cost effective, separation from operational systems, available for queries, associated with defined periods of time, and static. Investing in data warehouse benefits organizations by letting their company evaluate data and also lets them have access to insights rather quickly. Some problems of data warehousing are