What is surrogate key? Where we use it?
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Explain how are the dimension tables designed?
in general which algorithms for used?
In a star schema, are foreign key constraints between facts and dimensions neccessary?
Suggest a good author for hyperion in data warehousing?
How can we do ETL process in SQL Server?
What is perform recovery?
What are the different models used in cluster analysis?
What are the approaches used by optimizer during execution plan?
How to improve session performance in aggregator transformation?
Why do we use DSS database for OLAP tools?
Difference between e-r modeling and dimentional modeling?
Explain what is the difference between a primary and secondary actor in use case modeling?