What are the difference between snow flake and star schema?
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When should you use a STAR and when a SNOW-FLAKE schema?
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What is data merging, data cleansing and sampling?
what is the difference between DSS and ODS ?
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Explain what are the methodologies of data warehousing?
What are vaious etl tools in the market?
What is the difference between er modeling and dimensional modeling?
What is the extension of file to save template?
What is a real-time data warehouse? How is it different from near to real-time data warehouse?
What is data mart in data warehouse?
Explain swot analysis?