What are the approaches used by optimizer during execution plan?
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Explain what is data validation strategies for data mart validation after loading process?
What are the key columns in Fact and dimension tables?
Explain ddl (data definition language)?
What is meant by metadata in context of a 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?
Explain what is cost benefit analysis (cba)?
What is data type of the surrogate key?
Tell me one example for multi valued dimension or bridge table?
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How can we run the graph? How can we schedule the graph in unix?
Code the tables statement for a single-level (most common) frequency?
How many types of facts and what are they?
what are the similarities between ROLAP and MOLAP