Explain what are the advantages data mining over traditional approaches?
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what are relationships?
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Which kind of index is preferred in DWH?
if you use oracle sql*loader , how do you transform data with it during loading?
What is META DATA information in Data warehousing projects?
What is the data type of the surrogate key?
What is Cognos script editor?
Explain if a flat file cotains 1000 records how can I get first and last records only?
Explain the difference between oltp and olap?
5.Explain ODS ?
How can you define a transformation? What are different types of transformations in Informatica?
Explain the process of extracting data from source systems,storing in ods and how data modeling is done?
What is called dimensional modelling?