What is Discover and Execute in XMLA?

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What are the difference between snow flake and star schema? What are situations where snow flake schema is better than star schema to use and when the oppositeis true?

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What is the advantages data mining over traditional approaches?

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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 did you plan your Data ware house project?

0 Answers   TCS,

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What is recovering sessions?

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Explain piconet?

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What is difference between model & package?

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What is prompt types of prompts?use of prompts syntax of prompt?

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Explain what is fact less fact table? Where you have used it in your project?

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What is a functional dependency f said to be minimal?

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What is meant by metadata in context of a data warehouse?

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