Data Warehouse General Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Data Warehouse General Interview Questions

Questions Answers Views Company eMail

Difference between slicing and dicing with example?

2 17603

waht is the advantage of infoset query

iGate,

2314

what is the diffrence between psa and idoc

iGate,

2213

Can we have more than one time dimensions in a Schema(Star or Snowflake)

ASD Lab, IBM,

1 6307

Compare and contrast aggregates & indexes

IBM, TCS,

3719

Compare aggregates and data marts

TCS,

2691

what role views play in dimensional modeling?

TCS, Zensar,

1 5813

how to calculate sum(sal) with out using aggregator satge

HSBC,

3 9091

what are the all possible features supported modify stage?

2059

what is the synchonus? wht is the diff between synchronous and asynchronous what is the diff between v1 and v2 v3 delta modes in sap ecc

IBM,

2441

in general which algorithms for used?

1975

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

L&T,

2 7761

what is hybrid schema

TCS,

4 16420

How many ways we test the universe & Report?

2 5990

In datastage can ve find the job based on source table name ??

TCS,

1 9346

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Un-Answered Questions { Data Warehouse General }

if you use oracle sql*loader , how do you transform data with it during loading?

2030

What is partitioning? What are the types of partitioning?

1070

Explain what are the vaious etl tools in the market?

866

What are the steps of implementing data warehousing?

972

What is is the guidelines to build universe with better performance? R performance tuning issues of universes?

846

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

882

Suggest a good author for hyperion in data warehousing?

885

Describe the differences between a data warehouse and data mart.

924

Is there any rownum object from which we can do this?

875

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

2314

Explain how are the dimension tables designed?

984

Explain how to export mappings to the production environment?

917

What is difference between query studio and report studio?

1033

In general, how many Fact & Dimension tables are present in a Banking Data warehouse project ?

2170

How to create prompts in report net?

937

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