What is the "junk dimension"? Give with examples?

8 Answers  

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Explain bus schema?

0 Answers  

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Explain vldb?

0 Answers  

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What are data modeling and data mining?

0 Answers  

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What is a relationship?

0 Answers  

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Explain what are components of reportnet?

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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Tell me one example for junk dimension?

9 Answers   TCS,

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What is query panel?

1 Answers  

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What is Molap and Rolap? What is Diff between Them?

10 Answers  

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What are the different types of data warehouses?

0 Answers  

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Explain what are the modules in power mart?

0 Answers  

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