Briefly explain how operational data and decision support data differ What is data warehouse? How is data for data wareh
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Briefly explain how operational data and decision support data differ What is data warehouse? How is data for data wareh
Briefly explain how operational data and decision support data differ What is data warehouse? How is data for data warehouse prepared, and how is it implemented? • What is a star schema and how are they constructed? What is data mining and what role does it play in decision support? Describe Online Analytical Processing (OLAP). . How are SQL extensions used to support OLAP-type data manipulations?
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