How to improve session performance in aggregator transformation?
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What is freehand sql?
What is real-time datawarehousing?
what are the all possible features supported modify stage?
Explain which columns go to the fact table and which columns go the dimension table?
What is cost benefit analysis (cba)?
Where the applications and where ware house management system is used?
What is the difference between mapping parameter & mapping variable in data warehousing?
DWH architecture?
suppose data are coming from different locations and those data will not change . is there any need to use surrogate key ?
What is the working process for application.cfm?
What is Analysis Services?
Explain why should you put your data warehouse on a different system than your oltp system?
Teradata 
