Explain difference between e-r modeling and dimentional modeling?
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Explain what are the advantages data mining over traditional approaches?
Where the data cube technology is used?
what are different storage options supported by oracle ?
What needs to be done when the database is shutdown?
Can a dimension table contain numeric values?
Tell me one example for junk dimension?
What are the methodologies of data warehousing?
What are vaious etl tools in the market?
Why null values are mapped as 0 in fact tables?
What is analytical or analytic mean?
What is a real-time data warehouse? How is it different from near to real-time data warehouse?
What is data merging, data cleansing and sampling?
Teradata 
