A data warehouse is a system that stores data from a company’s operational databases as well as external sources.

The amount of data that businesses are generating is exploding. In the past, businesses only had to deal with data from their internal systems. But now, they are also collecting data from customers, suppliers, partners, and even devices like sensors and wearables. This data can be used to gain insights into customer behaviour, identify trends, and make better business decisions.

Data Warehousing.