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What is Unit 1 DW about?

A data warehouse is a centralized repository designed for efficient querying and analysis of large volumes of historical data from various sources, optimized for read-heavy operations. Key components include data integration, ETL processes, OLAP capabilities, and data governance, which support business intelligence and decision-making. The architecture can vary, with common models including single-tier, two-tier, and three-tier systems, each addressing different needs for data management and analysis.

Author

durgalakshmi.cse

Language

EN