What are loops in Datawarehousing?
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What is data validation strategies for data mart v?
Explain what is power center repository?
Explain what are the various methods of getting incremental records or delta records from the source systems?
for data loading in oracle, what are conventional loading , what are conventional loading and direct-path loading?
Explain Association algorithm in Data mining?
What are the data marts?
What is a junk dimension? What is the difference between junk dimension and degenerated dimension?
What is surrogate key? Where we use it? Explain with examples.
Explain about core dimension,
What are the stages that are required in data warehousing?
What are the difference between snow flake and star schema? What are situations where snow flake schema is better than star schema to use and when the oppositeis true?
Difference between ODS and Staging