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What is data warehousing in data mining?
Updated May 15, 2026
Short answer
A data warehouse stores integrated data for analysis.
Deep explanation
Data warehousing consolidates data from multiple sources into a central repository optimized for querying and analysis. It supports OLAP operations and historical data analysis.
Real-world example
Retail companies analyzing yearly sales trends.
Common mistakes
- Using operational databases for analytics.
Follow-up questions
- What is OLAP?
- What is ETL?