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What are top down, bottom up etc approaches in data warehouse?
Please somebody explain it!!
Answers (3)
Bottom up approach- we will create small data warehouses and them merge them all to create large data warehouse. Top down approach- we will create a large data warehouse and then later create small date warehouses from that large data warehouse as per the requirement
Lavanya Chitturi Moderator
Bottom up approach- we will create small data warehouses and them merge them all to create large data warehouse. Top down approach- we will create a large data warehouse and then later create small date warehouses from that large data warehouse as per the requirement
Thanks are there any further approaches?
