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Data Warehouse Interview Questions
Questions Answers Views Company eMail

HAI FRIENDS THIS KISHORE FROM KUMBAKONAM. I HAVE COMPLETED MY MCA IN SASTRA UNIVERSITY WAITING FOR MY 6 TH SEM RESULT.DURING MY PROJECT I HAVE DONE INFORMATICA COURSE AS MY AREA INTEREST COURSE IN CORE MIND TECHNOLOGIES CHENNAI.I HAVE ENQUIRY ABT ALL IT PEOPLE FOR DATAWAREHOUSING THERE IS NO OPENING FOR FRESHERS. WITH SOME EXPERIENCE ANY OTHER DOMAIN TNEN ONLY U CAN GET THAT DOMAIN(DATAWAREHOUSING) JOB.BUT I AM MORE INTEREST ON THAT TO WORK ON THAT DOMAIN(INFORMATICA).WHAT TO I DO. I AM IN HELPLESS FRIENDS/EXPORTS.WAITING FOR REPLY

2110

What is the difference b/w natural key and surrogate key

1 5482

My source data like... Empid Name 10 chandra 10 sekhar I am expecting result is Empid Ename 10 Chandrasekhar How can we solve this prob?

Cap Gemini,

3 9834

what are the types of Data warehousing ?

1 3059

what are the types of facts with Examples?

3 6004

My sql query is 1. select 1+x from dual? 2. select 1+'x' from Dual? 3. Select x+1 from dual? what is the out put of the above queries?

HP,

3 9264

Hello Frndz, I have a table named product as shown below: product_id product_name 1 AAA 1 BBB 1 CCC 2 PPP 2 QQQ 2 RRR Now my output should be: product_id product_name_1 product_name_2 product_name_3 1 AAA BBB CCC 2 PPP QQQ RRR

Cap Gemini,

4 12600

HI i have a table with 4 columns in back end like sales id, sales revenue, order id and order amt. Now i have created 2 prompts at query level 1st on sales id and 2nd on order id. Now if i run the report for 1st prompt it has to display sales id and sales revenue. Then if i run the report for 2nd prompt then it has to overwrite the table with Order ID and order amount. How you will handle this?

1 4180

What are the tuning techniques you applied during your last project

2026

i have two coloumn emp_no sal 1 3000 2 3000 3 3000 4 4000 5 5000 6 2700 7 4500 i just need output by removing duplicate.my answer should be emp_no sal 1 3000 2 4000 3 5000 and so on.please tel me the transformation to use and if variable is used in expression then how can i give variable expression

3 7733

my source table having sureshraj42@gmail.com and rajeshraj42@gmail.com and i have only sureshraj and rajeshraj for my target table which transformation i have to use in informatica

HP,

3 7814

How we will implement Pushdown Optimization and Types in Informatica with better examples

TCS,

4 14035

How to remove ctrl M or(^M) characters in file using Sequential File stage?

Bank Of America, Satyam,

2 22226

any difficulitis have you phase while creating bo reports and how did u solve it

3452

what is projection function in SAP BO

Cap Gemini,

1 11873


Un-Answered Questions { Data Warehouse }

Explain ddl (data definition language)?

1007


tomorrow i have interview in infosys.can someone pour any suggestions or any interview questions. thank you

837


Can we configure two instances of CMS pointing to two different CMS system databases?

2031


What is mapping debugger?

1016


table actions available in oracle connector?

1612


What are the steps to do to use alerts in bo?

1394


How to deploy from one server to another server?

2491


why do u need the IOS upgradation in a FC switch

2283


What are the advantages of raid 1, 1/0, and

980


Explain about a task that really tested your analytical abilities?

1249


How to clean the datastage repository?

1127


Hi friends please reply what will be the answer to following question in crystal report 1)Difference between the CR8.5 & CR10.5(withing VS2008) in terms of features. 2)Is Hierarchy of grouping features in either CR8.5 or CR10.5. what are its limitation i.e maximum no's can be created. 3)Scenario - If I have a string semicolon separated(1000 in nos) then how to pass it into Record Selection formula or parameter. 4)Scenario - If user want to do dynamic grouping at runtime that to while designing report only 1 group was created and as per user at runtime based on user selection different fields are used to create group. How is it possible. (Is it possible through formula?) 5)what is cascade or dynamic prompting.whether this is a feature of CR8.5 or CR10.5. 6)what to answer for question "How would you start crystal report development" 7)How "set location" is useful & how to implement it. 8)Scenario - At design time report was developed using MS SQL as datasource but at client side they are using Oracle which is having same table name and structure will the report work? If yes what changes are required to do so. 9)when does "Table Not Found" error is generated.

2188


when u connect the repository for the first time it asks you for user name & password of repository and database both.But subsequent times it asks only repository password. why?

2175


What errors and types of errors you faced in Cognos ReportNet?

4189


What is rank transformation?

991