List any five applications of data warehouse.
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Explain what are the advantages and disadvantages of reporting directly against the database?
What is a data warehousing?
Explain which are the olap tools available that are supported by oracle?
Explain the process of extracting data from source systems,storing in ods and how data modeling is done?
Explain the definition of normalized and denormalized view?
Can we start and stop single session in concurent bstch?
What is junk dimension? What is the difference between junk dimension and degenerated dimension?
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.
Explain ddl (data definition language)?
Explain when do we analyze the tables? How do we do it?
What is metadata in context of a datawarehouse?
Ist the schema that a data warehouse system can implements.