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Explain the different types of data warehousing?
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How many different schemas or dw models can be used in siebel analytics. I know only star and snow flake and any other model that can be used?
Why is chameleon method used in 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?
Why null values are mapped as 0 in fact tables?
What is a Decision Tree Algorithm?
What are the advantages of cold fusion?
What is difference between a connected look up and unconnected look up?
What is Molap and Rolap? What is Diff between Them?
What is a cube in data warehousing concept?
What is what are semi-additive and factless facts and in which scenario will you use such kinds of fact tables?
Fact table is in normalized or de-normalized form?
Explain what is real time data-warehousing?
Teradata 
