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

Teradata (490)
Business Objects (875)
Cognos (1143)
Informatica (2428)

SAS (1049)
Micro Strategy (282)
ETL (315)
OBIEE (92)

Data Warehouse Interview Questions

Questions Answers Views Company eMail

please differentiate star schema and snow fleak schema with dimension table, how end user is depending on them in creating reports.

Exilant, Wipro,

1 5363

please anyone explain the equi join,outer joi(right outer join and left outer join),theta join and self join with database tables.

Wipro,

2 6382

If 2 tables are joined by Shortcut join, if query is generated based these join, what will be the join type and what will be the generated query? Thanks in advance?

iNautix, Wipro,

2229

tell me some dimension tables names in banking domain informatica project(dont tell like depends on project, tell me names of dimension and fact table names in your project)?

IBM, Patni, TCS,

3 26141

Need Ab-Initio Material - Harini

7 11780

any one pls tell me what are the table names in banking project?

2 5098

any one answer me how they can analyzing the project using data ware housing?

2476

what are the uses of fact table and dimension table in banking project?

TCS,

4556

Hi Techies, I got an issue so need your advice here. I have created a report in Report Studio and it's having 2 columns which are having long text as a value (BLOB data type). Report is displaying entire text items in HTML format, but when I'm exporting it into EXCEL it's give me ##########. How to correct (wrap) it in Excel? so when end users they are directly running that report in Excel so instead of seeing ######### for long text items they should see the entire text items in those columns. Please advice!

HCL, Wipro,

5 7827

what is the query for retrieve the unique values(not display the duplicates values) from single table?

IBM,

6 10043

"pravalli nagireddy" record is there in address column but i want display only 'nagireddy' from the main string what is query for that pls tell me

9 12451

Hi, I got a requirement wehre in in a drill through report , in parent report i have a column of numbers on which i have to apply drill through to child report.The condition is in that column if the number ia not zero the drill through link should appear (i.e., 1 to 9) if its 0 or negative number link should not appear. How ? Help would be appreciated

IBM,

1 5161

Hi ,how many shortcut joins used in a single universe? Thanks in Advance

2 5395

SOURCE DATA IS DISPLAY IN THIS FORMATE IN TARGET . WHAT BUSINESS LOGIC WE CAN APPLY. source table target table ------------ ------------ c1 c2 c3 c1 c2 c3 -- -- -- -- -- -- 1 A J 1 2 B K 2 A 3 C L 3 B J 4 D M 4 C K 5 E N 5 E L F M N

Infotech,

2131

1,If there are 3 workflows are running and if 1st workflow fails then how could we start 2nd workflow or if 2nd workflow fails how could we start 3rd workflow?

CompuSoft, EDS, TCS,

4 17299

Un-Answered Questions { Data Warehouse }

Explain what is metadata reporter?

975

What is zero-foot print?

1019

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

1011

Explain multivalued dependency?

991

What do you mean by channel change?

1047

Is there any way to read the ms excel datas directly into informatica?

1022

Mention what dedup-component and replicate component does?

1044

What is meant by target load plan?

974

tell me 5 situations when we r using oracle db stages like orecle connector, oracle enterprise

3124

What is spool space? Why do you get spool space errors?

1020

What exactly do you know about the typical data analysis?

1105

What is the difference between input and infile statement?

1175

What are pass-through functions and why they are so called? Give some examples.

1023

Explain teradata architecture?

1091

Define ramp limit in ab initio?

1286

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