Explain what are the basic needs to join two sources in a source qualifier?
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What is the difference between er modeling and dimensional modeling?
what is the difference between etl tool and olap tools
Tell me one example for multi valued dimension or bridge table?
2 Answers Accenture, CMC, IBM, Logica CMG, TCS,
Explain which are the olap tools available that are supported by oracle?
Explain what are the basic needs to join two sources in a source qualifier?
The same tier?
What is a fact table?
Which technology should be used for interactive data querying across multiple dimensions for a decision making for a dw?
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What is the very basic difference between data warehouse and operational databases?
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