What are the difference between snow flake and star schema?


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More Data Warehouse General Interview Questions

What are the steps of implementing data warehousing?

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Explain some of modeling tools available in the market?

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what is the difference between aggregate table and fact table ? how do you load these two tables ?

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what are confirmed dimension? We alwys give date as a conformed dimension but if it has different format for different contries say YYMMDD for italy and MM-DD-YYYY for france.Then are they not confirmed.

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what is the synchonus? wht is the diff between synchronous and asynchronous what is the diff between v1 and v2 v3 delta modes in sap ecc

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What is data analysis?

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What is data cleaning? How can we do that?

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What are different deliverables according to phases?

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What is incremintal loading?

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What are CUBES?

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what is data validation strategies for data mart validation after loading process

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How to handle time period attribute for time dependent data?? a.)add time period as a part of pk b.)add time period simply and make it nullablec.)add time period simply and make it not null.

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