Explain the difference between data ware house & data mart?
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What is called dimensional modelling?
Explain when do we analyze the tables? How do we do it?
What is surrogate key?
Explain normalization?
Is there any rownum object from which we can do this?
Explain the differences between normalizer and normalizer transformation?
What is multi-dimensional analysis?
Business rule implemntation depends on? 1.)ETL requiremnts 2.)ETL performance 3.)business requirements.
Start a batches with in a batch?
What are Non-additive facts?
What is the difference between junk dimension and degenerated dimension?
Explain about core dimension,