Describe a data warehouse.
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What is ?Data Warehousing??
How can you define a transformation? What are different types of transformations in Informatica?
how much memory space occupied real time project (roughly)?
What is an er diagram?
Where the applications and where ware house management system is used?
What is the definition of cube in datawarehousing?
What is Discover and Execute in XMLA?
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 diagrams?
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What is Time Series algorithm in data mining?
What are parallel querys and query hints?
What are situations where snowflake schema is better than star schema when the opposite is true?