What are different stages of ?Data mining??
Explain clustering algorithm?
Why denormalization is promoted in universe designing?
what are different ways of loading data to data warehouse using oracle?
The same tier?
Explain what are the different types of join operations?
what is a hot file, why we need in datawarehousing, where we used in general
Explain why denormalization is promoted in universe designing?
How many types of facts and what are they?
Explain datawarehousing?
What is ods (operation data source)?
How can we load the time dimension?
Explain the differences between normalizer and normalizer transformation?