what is a data warehouse example 
consider a company that makes exercise equipment its best seller is a stationary bicycle and it is considering expanding its line and launching a new marketing campaign to support it it goes to its data warehouse to understand its current customer better it can find out whether its customers are predominantly women over 50 or men under 35 it can learn more about the retailers that have been most successful in selling their bikes and where they re located it might be able to access in house survey results and find out what their past customers have liked and disliked about their products all of this information helps the company to decide what kind of new model bicycles they want to build and how they will market and advertise them it s hard information rather than seat of the pants decision making 