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 17648

waht is the advantage of infoset query

iGate,

2333

what is the diffrence between psa and idoc

iGate,

2240

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

ASD Lab, IBM,

1 6338

Compare and contrast aggregates & indexes

IBM, TCS,

3734

Compare aggregates and data marts

TCS,

2724

what role views play in dimensional modeling?

TCS, Zensar,

1 5842

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

HSBC,

3 9147

what are the all possible features supported modify stage?

2093

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,

2464

in general which algorithms for used?

1993

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 7811

what is hybrid schema

TCS,

4 16491

How many ways we test the universe & Report?

2 6028

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

TCS,

1 9382

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Un-Answered Questions { Data Warehouse General }

What are the advantages and disadvantages of using stored procedures versus calling sql inline in cold fusion?

1142

What are the reasons to use a chameleon method in data warehousing?

1017

Can we start and stop single session in concurent bstch?

905

for data loading in oracle, what are conventional loading , what are conventional loading and direct-path loading?

2084

What is core dimension?

1002

What is a core dimension?

1024

Explain the definition of normalized and denormalized view?

863

Explain normalization?

1071

Explain which are the olap tools available that are supported by oracle?

965

Explain why are oltp database designs not generally a good idea for a data warehouse?

989

How can we schedule the graph in unix?

955

i have scheduled a report in a job in the cognos8.3 which would send the reports to the respective user ,now the repot ran and is sent to the respective user but it contains some unwanted data. So based on the senario can any one tell me that can we recall back the report ??????

1938

What is the purpose of Dataware Control?

1009

What is Discrete and Continuous data in Data mining world?

2590

How can we load the time dimension?

1154

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