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

I have 1 crore record in my table and I have to load 25 L in 1st target,25L in 2nd target and 25L in 3rd target? I am new to Informatica,can anybody suggest me the idea?

2 4722

How to load query faster,so that It will take less time to load?

BNP Paribas,

1 3875

rank() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid order by case when opt2.dm_market_flg in ('Y', 'U') then 1 else 2 end, lkp.contact_rank) as rank1, case opt2.contact_type when 'Buyer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, ship_to_flg desc , last_order_dt desc) when 'Decision Maker' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc , last_quote_dt desc , mailability_score desc , source_ranking desc) when 'Influencer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) when 'Payer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) --elu 05/28/2013 else row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) end rank2 row_number() over (partition by opt3.dim_plat_site_id, opt3.dim_site_opt_sid order by rank1,rank2) as "rank", case when "rank"<= opt3.maximum_value then 'Y' else 'N' end as include_flg

1 2026

Using Informatica Visio to generate mappings. I am getting error "Table Definition Not Found Exception Error" while importing the template.

1 4061

Hi, can anyone plz share the project architecture for etl testing(banking domain) plz explain the architecture .

Cap Gemini,

1 3112

can u anyone plz share some etl testing interview question . and share the sql queries and unix . plz help me to clear in the etl testing interview by sharing ur knowledge

Cap Gemini,

1 1882

Hi can anyone write query for the below input and output Table 1 col 1 100 Null 200 300 Table 2 col1 Null 400 700 800 o/p 200 700 800 2)sql col 1 contains 23x-5-45 26x-12-45 28x-10-50 o/p middlevalue should be greater than 10

Cap Gemini,

1590

case and like function in informtica (my source is XML). case when OS Like'%Windows%' and OS Like '%200%' then 'Windows 200' case when OS Like'%Windows%' and OS Like '%200%'and OS like '%64%' then 'windows 200 64 bit' etc.,,

1 2689

3.User1 doveloped some report,user2 modify the same report and user 3 also updates in that same report? how to identify that report will be modified or not?

IBM, Thomson Reuters,

1 3671

how do we write scripts in unix how to execute scripts in real time anybody please needfull or give me number i will cal u

1 1801

scenario: dept_no emp_nem 10 A, 10 B, 10 C, 10 D, 20 P, 20 Q, 20 R, 20 S output: dept_no emp_nem 10 A, 10 AB, 10 ABC, 10 ABCD, 20 ABCDP, 20 ABCDPQ, 20 ABCDPQR, 20 ABCDPQRS

1 4735

replace multiple spaces with single space.

IBM,

3 6681

How to get rid of non ascii characters in a string? Ex:- United States Microsoft Visual Studio Tools for Applications 2012 x86 主控支援 - 繁體中文語言套件 to United States Microsoft Visual Studio Tools for Applications 2012 x86.

CTS,

1 3822

How to cast date "2015-03-03-012204-000000" to timestamp

Cognizant,

1 4445

Hi,by usining ptf how we have to combine (likr merge)10 datasets at a time in the oracle database(and write a macro code also)?Like this i have a douts a lot if you dont mind may please send one text mail for me(madhusudhanap16@gmail.com)?

1 1757

Un-Answered Questions { Data Warehouse }

Hi Friends, Please send me Teradata Materials for certifications Thanks in advance !!

2264

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

1233

Demonstrate experience in maintaining quality process standards?

2672

what is document design in boxi,have u participate in that

2306

HI, Anybody is having informatica Dumps,if it there Can u send to my mail id :sathesh.cool@gmail.com

2105

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

1212

Tell me about your experience in informatica? what is best mark you can give yourself? How to answer this question?

8286

What r the names of the reports that you prepared?

1030

1. When u r checking out what ll happens for version no? a. Increase b. decrease c.reset to 0 d. reset to 1 e. no change 2. Salary of all employees needed to add with the commision. What transfrmation to be used? a. SQ and Expression b. SQ c. Update Strategy d. Expression 3. Which of the task is used to run a session based on success of the other session? a. Decision b. Event wait c. Email d. Command e. None 4. Types of sources in Informatica? a. Homogenous n Heterogenous b. None c. Cobol n XML d. Flat files e. Flat files and Homogenous n Heterogenous 5. Servers are available in informatica? a. Informatica Server and Workflow server b. Informatica Server and Informatica Repository Server c. Informatica Server d. Workflow server e. Informatica Repository Server 6. While using Pmcmd in cmd line mode, each command must include the connection info of which of the following? a. workflow manager b. Power Center server c. Workflow monitor d. Repository manager e. Designer 7. Workflow montior displays workflows that have run a. once b. twice c. never d.four times e. thrice 8. Mode for handling sessions n workflows? a. server mode b. Wait mode c. Command line mode d. User mode e. Interactive mode 9. Connection details configured in? a. Mapping designer b. Workflow manager c. Workflow monitor d. Repository manager e. Worklet designer Thanks in Advance

4262

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 aggregate table and aggregate fact table ... Any examples of both?

1118

Hi friends, what are the new features in abinito3.0?

2860

hi all i am searching for cognos jobs pls inform about the jobs to:santosh.koora@gmail.com

2437

what are the names of the reports that you prepared?

1194

can anybody send me some real time screenshots of mapping in informatica powercenter. i will be vary thankful to him. my e-mail id :- prakashkumar.kumhar@gmail.com

4796

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