Explain what are the advantages data mining over traditional approaches?
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How to know the time taken for particular report execution?
What is a hash cluster?
What are the key columns in Fact and dimension tables?
What are the other names given to data warehousing?
What is metadata in context of a datawarehouse and how it is important?
Can we have more than one time dimensions in a Schema(Star or Snowflake)
Explain what is the difference between olap and datawarehosue?
What is a data profile?
What is meant by metadata in context of a data warehouse?
Where the data cube technology is used?
Do you always need to copy the data before reporting on it?(Example, real-time & on-demand reporting is a requirement)?
Explain reference cursor?
Teradata 
