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Explain are data mart and dwh normalized or denormalized? Do both of them exist in
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Explain what is a cube in data warehousing concept?
explain the ROLLUP, CUBE, RANK AND DENSE_RANK FUNCTIONS OF ORACLE 8I
3 Answers IBM, Ness Technologies,
What is meant by metadata in context of a data warehouse and how it is important?
Explain what is ods (operation data source)?
Ist the schema that a data warehouse system can implements.
Select * from emp,dept,loc where emp.deptno left outer join dept.deptno and dept.locno=loc.locno. No need to consider the syntax but is it possible to have left outer join and equi join in the same SQL like this ? can we have right outer join and left outer join in the same SQL ---
1 Answers Principal Finance, PT Metalogix Infolink Persada,
Hi Friends, Can anyone tell me. is there any certification in Database testing or BI testing or ETL testing international certification? Thanks ArunKumar
Explain clustering algorithm?
What is called dimensional modelling?
Explain what is cost benefit analysis (cba)?
Can we have multiple application.cfm file in an application?
What are vaious etl tools in the market?
Teradata 
