What is data cleaning? How can we do that?
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Explain why denormalization is promoted in universe designing?
in general which algorithms for used?
Explain what is cost benefit analysis (cba)?
Which component has onread method and what it is used for?
Can a dimension table contain numeric values?
What is a core dimension?
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 what are semi-additive and factless facts and in which scenario will you use such kinds of fact tables?
Explain what are necessary tasks to install reportnet software?
What is metadata in context of a datawarehouse and how it is important?
What are situations where snowflake schema is better than star schema when the opposite is true?
I HAVE A FLAT FILE DO THE NULL CHEK AND PRIMARI KEY CHEK AND DATE VALIDITAION LOAD TO TARGET TABLE