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What is Data Warehousing and OLAP Overview about?
The document discusses data warehousing and OLAP technology for data mining. It defines a data warehouse as a subject-oriented collection of integrated and historical data used for analysis and decision making. A key aspect is that data warehouses use a multi-dimensional data model with facts and dimensions, organized in data cubes to enable analysis of data across multiple perspectives. This differs from operational databases which are optimized for transactions rather than analysis.
- Author
- biswanath dehuri
- Language
- EN