Explain vldb?
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What is data merging, data cleansing and sampling?
What is an IDQ file? What is the purpose of the IDQ file and what kindof information does it usualy hold? Can it be imported by informatica?
What is multi-dimensional analysis?
Explain why dimenstion tables are denormalized in nature?
How to load the time dimension?
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What are components of reportnet?
What is the main difference between inmon and kimball philosophies of data warehousing?
What is an er diagram?
What are the advantages of raid 1, 1/0, and 5. What type of raid setup would you put your tx logs?
Explain datawarehousing?
What is data warehosuing hierarchy?