What is the main difference between star and snowflake star schema? Which one is better and why?
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What is difference between Mapplet and reusable transformation?
What is conformed dimension?
What are the stages that are required in data warehousing?
What is Molap and Rolap? What is Diff between Them?
Explain the definition of normalized and denormalized view?
What is surrogate key? Explain with examples.
How are models actually derived?
What is Factless fact table? In which purpose we are using this in our DWH projects?Plz give me the proper answer. Thanks, Ramesh
What is Operational Data Store?
Business rule implemntation depends on? 1.)ETL requiremnts 2.)ETL performance 3.)business requirements.
what is an use case?
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Which columns go to the fact table and which columns go the dimension table?