Explain what is the metadata extension?
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What is difference between Mapplet and reusable transformation?
Explain what are the various reporting tools in the market?
What is the difference between agglomerative and divisive hierarchical clustering?
Can you state some of the innovations throughout history?
how to calculate sum(sal) with out using aggregator satge
Who needs data warehousing?
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.
What is factless fact schema?
What are the different problems that ?Data mining? can solve?
What is data merging, data cleansing and sampling?
What is batch processing?
Explain what are the methodologies of data warehousing?