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Categories >> Software >> Data Warehouse >> ETL
 
 


 

 
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 ETL interview questions  ETL Interview Questions (195)
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Question
without using ETL tool can u prepare a Data warehousing and
maintaining?
 Question Submitted By :: ETL
I also faced this Question!!     Answer Posted By  
 
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
 
Answer
# 2
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
 
 
 
Answer
# 3
Hai..,No Possible. 
Is This Answer Correct ?    2 Yes 6 No
Kiran
 

 
 
 
Other ETL Interview Questions
 
  Question Asked @ Answers
 
what is a test load?   3
what is a parameter when and where do u them when does the value will be created. Designing time, run time. If u don't create parameter what will happen?   1
what is session partitioning?   1
CAN ANY ONE SEND ME THE CODE FOR THE BELOW 1).REMOVE '_' FROM TELE PHONE "323-237-2323" AND SHOULD DISPLAY OUT PUT AS "323237232" 2). NEED TO ONLY "COMPANY.COM" FROM EMAIL FILED "TEST@COMPANY.COM"   11
What are the new features of informatica 9 version?   2
how do u estimate the number of partitions that a mapping really requires? Is it dependent on the machine configuration?   1
how do u implement unconn.stored proc. in a mapping?   1
What is the main difference between peek stage and copy stage   2
what are Lookup caches options? Including persistent caches.   1
list the transformation used for the following:Heterogeneous sources,Homogeneous sources,Find the 5 highest paid employees with in a dept,create a summery table,generate surrogate keys   2
without using ETL tool can u prepare a Data warehousing and maintaining?   3
What is Relational Integrity?   1
 
For more ETL Interview Questions Click Here 
 
 
 
 
 


   
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