List down some of the real time data-warehousing tools?

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Which is the optimized method of extracting the data.

3 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 are the vaious etl tools in the market?

1 Answers  

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Suppose you are filtering the rows using a filter transformation only the rows meet the condition pass to the target. Tell me where the rows will go that does not meetthe condition.

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Difference between cold fusion mx 6 and cold fusion mx 7?

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Compare ?Data mining? and ?Data Warehousing??

5 Answers  

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Explain piconet?

0 Answers  

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Is union transormation is active transformation?

0 Answers  

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what are relationships?

0 Answers   InfoAxon Technologies,

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Explain what is a cube in data warehousing concept?

0 Answers  

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What is a hash cluster?

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