A data warehouse is a centralized repository that stores integrated data from multiple sources, specifically designed for analysis and reporting. It supports business intelligence activities by allowing organizations to perform complex queries and analyze historical data. Unlike transactional databases that handle day-to-day operations, or data lakes that store raw, unprocessed data, a data warehouse contains structured data optimized for fast query performance.
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What types of data can be stored in a data warehouse?
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How does a data warehouse support business intelligence (BI) activities?