What is the purpose of cluster analysis in data warehousing?
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What are session timeout and application timeout? Where we have to do this process?
Explain the main difference between inmon and kimball philosophies of data warehousing?
What are the various transformation available?
Explain er diagram?
What are the tools available for etl?
What is the difference between olap and datawarehosue?
What is operational data source (ODS)?
What is meta data and system catalog?
What are the stages that are required in data warehousing?
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?
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.
How can we transform row to column?