Explain what are the methodologies of data warehousing?
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What is the purpose of cluster analysis in data warehousing?
Where we use surrogate key explain with example?
Explain the difference between filter and conditin?
What is a staging area? Do we need it? What is the purpose of a staging area?
What is a Decision Tree Algorithm?
Explain how are the dimension tables designed?
How do you define data block size?
Tell me one example for junk dimension?
Why denormalization is promoted in universe designing?
how to find unique records in informatica level
Why should you put your data warehouse on a different system than your oltp system?
which automation tool is used in data warehouse testing?