What is a real-time data warehouse? How is it different from near to real-time data warehouse?
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Start a batches with in a batch?
2.What is staging area ?
4 Answers HCL, IBM, iFlex, TCS,
How to export mappings to the production environment?
In a star schema, are foreign key constraints between facts and dimensions neccessary?
Tell me one example for junk dimension?
Explain the advantages of raid 1, 1/0, and 5. What type of raid setup would you put your tx logs.
How to test report in reportnet?
After the complete generation of a report who will test the report and who will analyze it?
What is the use of incremental aggregation? Explain me in brief with an example?
how do you use commit frequencies? how does it affect loading performance?
Is framework manager an un-needed overhead? As we know report studio allows us to create the data model from a query and thereby skipping framework manager. Given that this feature is available, in what scenarios would one want to skip framework manager?
What is difference between query studio and report studio?
Teradata 
