What are the data marts?
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Explain grouped cross tab?
Explain what are the advantages and disadvantages of reporting directly against the database?
What Oracle tools can be used to design and build a W/H?
What is surrogate key?
How to improve session performance in aggregator transformation?
In a star schema, are foreign key constraints between facts and dimensions neccessary?
Difference between e-r modeling and dimentional modeling?
What are loops in Datawarehousing?
Explain what is data validation strategies for data mart validation after loading process?
I know of using applysimple, but there are other ways too?
What is aggregate awareness?
What is a data profile?