Explain what is the main difference between inmon and kimball philosophies of data warehousing?
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What is data warehosuing hierarchy?
Explain where do we use semi and non additive facts?
What is what are semi-additive and factless facts and in which scenario will you use such kinds of fact tables?
What are non-additive facts in detail?
Explain techniques of error handling - ignore , rejecting bad records to a flat file , loading the records and reviewing them (default values)?
Explain what is type 2 version dimension?
How to handle time period attribute for time dependent data?? a.)add time period as a part of pk b.)add time period simply and make it nullablec.)add time period simply and make it not null.
What is real-time datawarehousing?
Difference between e-r modeling and dimentional modeling?
What is a Decision Tree Algorithm?
What is aggregate awareness?
What is the difference between connected and unconnected stored procedures?