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Categories >> Software >> Data Warehouse >> ETL
 
 


 

 
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Question
without using ETL tool can u prepare a Data warehousing and
maintaining?
 Question Submitted By :: Jakki
I also faced this Question!!     Rank Answer Posted By  
 
  Re: without using ETL tool can u prepare a Data warehousing and maintaining?
Answer
# 1
Yes , it is possible to create a datawarehouse without
using ETL tool. but it will be very very complicated and
time consuming and if the needs change you need to re-work
on it again.but when you use etl tools you can adapt you
can make the changes as required.
 
Is This Answer Correct ?    6 Yes 4 No
Bharathikmylearningsphere
[Keysoft Solutions]
 
  Re: without using ETL tool can u prepare a Data warehousing and maintaining?
Answer
# 2
Hai..,No Possible. 
Is This Answer Correct ?    2 Yes 6 No
Kiran
 
 
 
  Re: without using ETL tool can u prepare a Data warehousing and maintaining?
Answer
# 3
Theoritically speaking Yes. Preparing a Datawarehouse and
maintaining will only be feasible when the amount of Data
you are dealing with is small. Practically Datawarehouses
will have huge data with large number of tables and complex
business rules which may keep changing from time to time.
All this makes practically impossible to implement DWH just
by writing database queries.
 
Is This Answer Correct ?    1 Yes 0 No
Zak
 

 
 
 
Other ETL Interview Questions
 
  Question Asked @ Answers
 
Eliminating of duplicate records without using dynamic lookups IBM 4
how would u estimate the size of Lookup transform data and index cache?   1
without using ETL tool can u prepare a Data warehousing and maintaining?   3
what is HISTOGRAM? how to generate statistics?   1
what happens if the info.server doesn't find the session parameter in the parameter file?   1
1. if lookup tr is giving poor performamence. what u do. 2. i have emp,dept table. i want output ename,empno,dname,max(sal). 3. can any one tell me project flow in real time scenario. please send me mail any queries and answers my mail id is yaparala@gmail.com iGate 2
WHY CANT WE SEE THE DATA IN DATASET IBM 1
what is meant by drill through?(Mascot)   1
we have 1 source table containing 100 records. now we have to transfer first set of 1-10 (i.e1-10) records to one target table and another set of 1-10(11-20) records to other target table and continue like that till 100th record   2
what are the facilities provided by OLAP to analytical users?   1
what is pmrep command?   1
what happens if the info.server doesn't find the session parameter in the parameter file?   2
 
For more ETL Interview Questions Click Here 
 
 
 
 
 


   
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