Explain the difference between keylokup and joiner?
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List any five applications of data warehouse.
What is aggregate fact table?
Suppose we have some 10,000 odd records in source system and when load them into target.how do we ensure that all 10,000 records that are loaded to target doesnt contain any garbage values?
Explain what is the difference between a primary and secondary actor in use case modeling?
what is an use case?
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How can you import tables from a database?
Explain clustering algorithm?
How can you implement many relations in star schema model?
what is the difference between MOLAP and ROLAP?
What we will do with the universe for faster process?
What is the data type of the surrogate key?
Advantages of de normalized data?
Teradata 
