Why facts table is useful in representing the data?
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Which is the optimized method of extracting the data.
Explain what are the various reporting tools in the market?
what is data validation strategies for data mart validation after loading process
Explain a mapping, session, worklet, workflow, mapplet?
What is Data purging?
What are the advantages and disadvantages of reporting directly against the database?
What is Molap and Rolap? What is Diff between Them?
Explain about Control M JObs detaily?How to execute this.
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How can Oracle Materialized Views be used to speed up data warehouse queries?
What is data warehosuing hierarchy?
What is XMLA ?
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.