What are Non-additive facts?

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What is what are semi-additive and factless facts and in which scenario will you use such kinds of fact tables?

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Hi, If any hav Informatica n DWH FAQ's,Plz do fwd to s.rajanikanth1980@gmail.com Thnx Vani

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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 what is metadata reporter?

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After the generation of a report to whom we have to deploy or what we do after the completion of a report?

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Explain what is the difference between power center & power mart?

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Explain difference between e-r modeling and dimentional modeling?

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What is factless fact tables?

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How to join 3 database like flat file, oracle, db2 in informatrica?

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What is the advantages data mining over traditional approaches?

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what is hybrid schema

4 Answers   TCS,

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