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

My report output is showing data as 1 11 111 2 22 222 3 33 333 How can I sort this to 1 2 3 11 22 33 111 222 333

1 4287

I have a SCD Type 2 Dimention for Location In which A Sales Office in Having two Surrogate Keys just because of the change in it's Sales Group. SKey SalesGroup Sales Office BeginDate EndDate 280 SG1 SO1 01APR2000 01APR2010 281 SG2 SO1 02APR2010 31MAR2999 Now while loading the Fact, the Lookup ir returning SKey 280 for records before and after 01APR2010. I am not able to give WHERE condition in the Lookup Properties (TranDate between BeginDate and EndDate). Please help.

1 2214

what are types of dimentions?

3 6151

is it reqire primary key and foreign key relation ship to join relational databases?if yes? explain?

IBM,

3 8875

disign the complex job in u r project?(they are aksing only complex job design and then data flow...)

1 2534

col1 123 abc 234 def jkl 768 opq 567 789 but i want two targetss target1 contains only numeric values and target2 contains only alphabet values like trg1 123 234 768 567 789 trg2 abc def jkl opq

Patni,

9 16711

Normalizer transformation is not involved in Mapplet.. why???

Wipro,

1 8677

how do i get last 10obs from a dataset when we don't know about the number of obsevations in that dataset?

TCS,

7 14138

How does PBK and Sort component and Join(in memory sort) work?I mean in the join component i have used In Memory Sort,so how will it work in terms of performence as compared with PBKand Sort Component?

1 5230

HI, Can any body explain me ? If we careate objects using derived tables it will decreasess the performence? If we are not creating the objects using the derived tables then what is the use of having the derived tables?

3 5052

how to get the data from the client machine and how to get server location data to client loction can any body explain to me

TCS,

1 5099

following table source name gender a1 male a2 female how to change 'male' to 'female' and 'female' to 'male'

2 5903

i have a data in my source as a flat files what test i have to perform the next step can any body help to me

SeeInfoBiz, TCS,

1 2189

can explain wt is the pool for file.

CTS,

1 7081

1)diff between shortcut-key and alias table? 2)what is unit testing? 3)what is scorecard?

Mphasis, TCS,

1 3638

Un-Answered Questions { Data Warehouse }

I have two different source structure tables, but I want to load into single target table? How do I go about it? Explain in detail through mapping flow.

1244

How do you remove duplicate records in informatica? And how many ways are there to do it?

1233

I have 2 doubts regarding the "Input Control" functionality in BI4: 1) Can the Input Controls in BI4 be manipulated? I mean, can we change the IC display as BOLD or change the values from Italics to regular? Or change the colors? 2) How to get hierarchy type control in IC? Let's say my first IC is for Country and second is for State. If I select a particulat country from Ist IC,second one should show me states belonging to selected country. Is that possible? Thanks in advance!!!

2266

hi frnds any body have cognos projects plz send me two(or)three projects to my mail adress ramureddy.reddy4@gmail.com.

2066

draw informatica architecture 8.6 ?

3949

What is node? How many nodes and amps used in your previous project?

1178

Name at least 5 different types of transformations used in mapping design and state the use of each.?

1212

Explain in detail about scd type 1 through mapping.

1646

What r the names of the reports that you prepared?

1032

Explain scd type 3 through mapping.

1076

Hi I need real time senarios and how to explain project in the interview pls let me know my email id m.n.prathyusha@gmail.com.Please help me out with this pls pls pls muthireddi@gmail.com

2213

Hello, Can you please send the admin and advanced mapping design sample questions to ns_sharmin@yahoo.com?

2421

Hi all , I am planning for informatica S - PowerCenter 8 Mapping Design certification. I have rewuired the dumps for the same. if anyone of you having the same pl. share it with me. This will be of great help. My contact is : sagardev7@gmail.com TIA , Sagar

2825

Hi, Does anybody has lastest SAS certification(base, adv., clinical)dumps,if anybody has please email me at mailtorajani76@gmail.com. Thanks

2313

What is the difference between business requirement document and use case document.

1086

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