Data Warehouse

A data warehouse is a special type of database that analyzes and optimizes large volumes of structured data. Data lakes store raw data, whereas data warehouse takes care of cleaned, processed, and structured data. It acts as a central repository for data collected from different sources such as relational databases, transaction systems, etc. The structured approach in data warehouse helps in enhancing performance in data retrieval. It also provides insightful information derived from the stored historical data that eventually aids in decision making.