What is the function of etl when used in data warehousing?
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Explain why are oltp database designs not generally a good idea for a data warehouse?
Give me a broad concept of what a data warehouse is, and what it might be used for?
What is "method/1"?
Explain what are slowly changing dimensions?
Is there any difference in testing database and data ware housing?
Explain what is the advantages data mining over traditional approaches?
How to handle multi value dimensions?
what is query optimizer? what are different types of optimizer s supported by oracle ?
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Explain what are components of report studio?
What are aggregate fact tables ? why they are needed? give an example
What are the different methods of loading dimension tables?