Which kind of index is preferred in DWH?

1 Answers  

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What is Operational Data Store?

0 Answers   Informatica,

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What is the difference between view filter and report filter?

0 Answers  

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What is difference macros and prompts?

0 Answers  

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How to handle time period attribute for time dependent data?? a.)add time period as a part of pk b.)add time period simply and make it nullablec.)add time period simply and make it not null.

1 Answers   IBM,

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What is difference between query studio and report studio?

0 Answers  

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How to import vsam files from source to target. Do we need a special plugin?

0 Answers  

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Explain difference between e-r modeling and dimentional modeling?

0 Answers  

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How many clustered indexes can you create for a table in dwh? In case of truncate and delete command what happens to table, which has unique id 347 what is hybrid slowly changing dimension?

0 Answers  

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What is a Data Cube?

1 Answers  

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Explain how does tuple-oriented relational calculus differ from domain-oriented relational calculus?

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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