What are the tools available for etl?
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How many types of facts and what are they?
explain about balanced dimension,
What are Fact tables and Dimension Tables?
What is a Decision Tree Algorithm?
What is the difference between dependent data warehouse and independent data warehouse?
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?
5.Explain ODS ?
What are the different types of join operations?
Explain what are conformed dimensions?
Why is dimensional normalization not required?
What are the advantages of raid 1, 1/0, and 5. What type of raid setup would you put your tx logs?
What is fact less fact table? Where you have used it in your project?