What are Non-additive facts?
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Explain how are the dimension tables designed?
What is a real-time data warehouse?
What is perform recovery?
What is factless fact tables?
What is an IDQ file? What is the purpose of the IDQ file and what kindof information does it usualy hold? Can it be imported by informatica?
If two relational tables are connected to sq trans, what are the possible errors it will be thrown?
List any five applications of data warehouse.
What is aggregate awareness?
What is a look up function? What is default transformation for the look up function?
What is Time Series algorithm in data mining?
Explain functional dependency?
what is query optimizer? what are different types of optimizer s supported by oracle ?