Answer / amp mohan

StarSchema: It is a logical database implement physically
in the datawarehouse with centralized fact table
normalized, depends on the denormalized dimension
table.Advantages of starschema is slicing down,performance
increase and easy to understand the data.

All ready we have alias tables for modifications why we are using views if anybody this answer plz reply me

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What is difference between drill through and drill down?

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Explain the different types of views used in cognos.

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