The primary purpose of using a data warehouse is to collect, store, and manage large amounts of structured and semi-structured data from various sources for reporting and analysis. Data warehouses consolidate data from different operational databases, allowing organizations to perform data analytics, business intelligence, and reporting efficiently. By organizing data in a way that optimizes query performance, a data warehouse enables users to derive insights and make data-driven decisions. It often serves as a central repository for an organization’s historical data, facilitating trend analysis and strategic planning.