Explain the concept of "data aggregation" in data warehousing. How does data aggregation help in summarizing and analyzing large volumes of data, and what are some common aggregation functions?
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Explain the concept of "data aggregation" in data warehousing. How does data aggregation help in summarizing and analyzing large volumes of data, and what are some common aggregation functions?
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- Explain the concept of data warehousing. What is its primary purpose in the context of data management?Explain the concept of data aggregation in data warehousing. How does aggregation benefit query performance and reporting in a data warehouse?In the context of data warehousing, what does the term "Hybrid Approach" mean?