Explain difference between e-r modeling and dimentional modeling?
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Where the data cube technology is used?
Explain what are non-additive facts?
What is the difference between a W/H and an OLTP application?
Define data warehouse?
Why joiner transformation does not allow the aggregator transformation and expression transformation to join
Can any one explain the hierarchies level data warehousing.
What is Data purging?
what are different ways of loading data to data warehouse using oracle?
What is freehand sql?
What is dimension modeling?
Where the cache files stored?
What is the difference between power center and power mart?