What are the different types of datawarehosuing?
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What is degenerate dimension table?
Explain are data mart and dwh normalized or denormalized? Do both of them exist in
three ways sql*loader could load data, what are those three types?
Is union transormation is active transformation?
What are aggregate fact tables ? why they are needed? give an example
Explain the process of extracting data from source systems,storing in ods and how data modeling is done?
What is the main difference between inmon and kimball philosophies of data warehousing?
What is operational data store (ods)?
Explain hybrid slowly changing dimension?
Explain what are the advantages of query studio compared to report studio?
What is a core dimension?
Explain degenerate dimension table?