What is dimensional modelling?


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More Data Warehouse General Interview Questions

What are aggregate fact tables ? why they are needed? give an example

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5.Explain ODS ?

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What is perform recovery?

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What is Grain & Granularity in Data Warehouse.

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What is the function of surrogate key in data warehousing?

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Explain how many ways you create ports?

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suppose data are coming from different locations and those data will not change . is there any need to use surrogate key ?

3 Answers   Oracle,


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