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Compare and contrast aggregates & indexes
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Compare aggregates and data marts
What is XMLA ?
What are data validation strategies for data mart validation after loading process?
What is factless fact tables?
Explain difference between e-r modeling and dimentional modeling?
Is framework manager an un-needed overhead? As we know report studio allows us to create the data model from a query and thereby skipping framework manager. Given that this feature is available, in what scenarios would one want to skip framework manager?
why we use dmr model in cognos report studio ? give me difference between dmr model and relational model.
What is a ETL/ How does Oracle support the ETL process?
What is a full backup?
What are the approaches used by optimizer during execution plan?
How to handle time period attribute for time dependent data?? a.)add time period as a part of pk b.)add time period simply and make it nullablec.)add time period simply and make it not null.
Ist the schema that a data warehouse system can implements.
Teradata 
