Answer / reddy

In snowflake star schema it is possible

Explain where do we use semi and non additive facts?

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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How can we run the graph? What is the procedure for that?

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What is many-to-many dimensional model in datawarehousing ?

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What is the purpose of Dataware Control?

0 Answers   CGI,

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Explain er diagram?

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what is hybrid schema

4 Answers   TCS,

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what is data validation strategies for data mart validation after loading process

1 Answers  

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how to find unique records in informatica level

1 Answers   IBM,

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

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How are the dimension tables designed?

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How can we run the graph? What is the procedure for that? How can we schedule the graph in unix?

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