Explain why dimenstion tables are denormalized in nature?
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What are the advantages of query studio compared to report studio?
Tell me one example for junk dimension?
List any five applications of data warehouse.
Explain difference between snow flake and star schema. What are situations where snow flake schema is better than star schema to use and when the opposite is true?
What are cluster analysis in data warehousing?
Explain what is cost benefit analysis (cba)?
What is the 4 + 1 view model as it relates to system modeling?
What is the very basic difference between data warehouse and operational databases?
How many clustered indexes can you create for a table in dwh? In case of truncate and delete command what happens to table, which has unique id.
what are the major three types of modeling used?
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What is crass reference table?
what are different types of partitioning in oracle ?