How can we do ETL process in SQL Server?

1 Answers   ETL,

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Can you brief about the Data warehouse project you worked on?

0 Answers   Deloitte, TCS,

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What is surrogate key? Where we use it? Explain with examples.

0 Answers  

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What is ETL process in Data warehousing?

3 Answers  

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How to performance tune reports?

0 Answers  

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Explain what is a cube in data warehousing concept?

0 Answers  

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What are the advantages of query studio compared to report studio?

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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if source contain 10records how you identify header and footer

2 Answers   Polaris,

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What is Snow Flake Schema design in database?

3 Answers  

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what is hybrid schema

4 Answers   TCS,

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In document how to create metrics?

0 Answers  

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