Give me a broad concept of what a data warehouse is, and
what it might be used for?
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Answer / phani kumar
Any organization keeps track of data and the current data
is only relevant to the OLTP means Online transaction
processing.
Suppose a company maintains sales data of different areas
for a particular product and it wants to know, whether a
particular area is having good sales or not.
For this it has to work on the past data for the sales made
at a particular area.
For making strategic decisions at a higher management level,
analysis needs to be made not on the historical data, which
is being maintained in the datawarehouse.
| Is This Answer Correct ? | 3 Yes | 1 No |
it maintains pre historical data
suposse ajay gone to usa yesterday,today he is in india in
normal data base like oracle current information only
availabble such as ajay is in india,but in dataware
house ''ajay gone to usa yesterday,today he is in india''
| Is This Answer Correct ? | 0 Yes | 3 No |
What are Aggregate tables?
Explain grouped cross tab?
Explain meta data?
Suppose date is 05sep2005; I want the output like 05sep2005:00:00:00 ; how it will come?
What is a real-time data warehouse? How is it different from near to real-time data warehouse?
What is Data purging?
What is a fact, dimension, measure?
Explain what are the advantages data mining over traditional approaches?
Fact table is in normalized or de-normalized form?
what is an use case?
0 Answers InfoAxon Technologies,
Name a few sectors which use data warehousing?
How are the dimension tables designed?
Teradata 
