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Briefly state different between data ware house & data mart?


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More Data Warehouse General Interview Questions

What is a star schema? Why does one design this way?

3 Answers  


What is the difference between power center and power mart?

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5.Explain ODS ?

3 Answers   HCL,


Do you view contain data?

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What is metadata in context of a datawarehouse and how it is important?

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What is drilling across?

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After the complete generation of a report who will test the report and who will analyze it?

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What are non-additive facts in detail?

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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 ?

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How many clustered indexes can you create for a table in dwh? In case of truncate and delete command what happens to table, which has unique id.

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