Explain what is a view as it relates to system modeling?

0 Answers  

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What is drill-through?

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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Explain how to get the first 100 rows from the flat file into the target?

0 Answers  

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How can you define a transformation? What are different types of transformations in Informatica?

7 Answers   TCS,

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What is Operational Data Store?

0 Answers   Informatica,

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Are facts same as metrics and dimensions same as measures? If not , please tell the difference?

1 Answers   Patni,

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When should one use an MD-database (multi-dimensional database) and not a relational one?

2 Answers   IBM,

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What are vaious etl tools in the market?

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What is IQD file?

1 Answers  

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What is a cube in data warehousing concept?

0 Answers  

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How can you communicate with web server (apache or iis) from coldfusion?

0 Answers  

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