What is junk dimension? What is the difference between junk dimension and degenerated dimension?

0 Answers  

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2.What is staging area ?

4 Answers   HCL, IBM, iFlex, TCS,

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What is Snow Flake Schema design in database?

3 Answers  

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What is bi?

0 Answers  

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How to create different types of templates?

0 Answers  

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What is perform recovery?

0 Answers  

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Hi Guys, I have been to L& T last week ..Please find the questions mentioned below 1)Slowly changing dimension types 2)DML statement 3)DDL statement 4)write a syntax to create database 5) differences between count(*) and count(column) 6) differences between union and union all 7) what is decode 8) what is NVL 9) Arrange the values in ascending order 10,5,20,15,null 10)Primary and surrogate key 11)what is group by clause does? 12)what is difference between truncate and delete 13)what is difference between OLAP and OLTP ? 14)Architecture of Datawarehouse 15)how do you test the data validation from source as (flat file and xml) to staging tables. 16)what is shedule and time bound the mentioned above question asked in two rounds.all the best

2 Answers   L&T,

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What is conformed dimension?

6 Answers   Polaris,

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What is difference between a connected look up and unconnected look up?

1 Answers  

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What are the different types of fact tables used in data warehousing?

0 Answers  

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Explain what are non-additive facts?

0 Answers  

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What is staging area?

9 Answers  

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