ALLInterview.com :: Home Page            
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
Google
   
 
Categories >> Software >> Data Warehouse >> ETL
 
 


 

 
 Teradata interview questions  Teradata Interview Questions (183)
 Business Objects interview questions  Business Objects Interview Questions (751)
 Cognos interview questions  Cognos Interview Questions (842)
 Informatica interview questions  Informatica Interview Questions (1622)
 Crystal Enterprise Suite interview questions  Crystal Enterprise Suite Interview Questions (29)
 Actuate interview questions  Actuate Interview Questions (35)
 Ab Initio interview questions  Ab Initio Interview Questions (168)
 Data Stage interview questions  Data Stage Interview Questions (563)
 SAS interview questions  SAS Interview Questions (550)
 Micro Strategy interview questions  Micro Strategy Interview Questions (36)
 ETL interview questions  ETL Interview Questions (195)
 Data Warehouse General interview questions  Data Warehouse General Interview Questions (215)
Question
what is the advantage of persistent cache? when it should be
used?
 Question Submitted By :: ETL
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
when the table you are using for lookup is static table(
i.e. data is not changing ) and it is the huge table.
Hence reduce the session time by using the persistent cache
file/s.
Regards,
 
Is This Answer Correct ?    1 Yes 0 No
San
 

 
 
 
Other ETL Interview Questions
 
  Question Asked @ Answers
 
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
how do u implement unconn.stored proc. in a mapping?   1
how do u estimate the number of partitions that a mapping really requires? Is it dependent on the machine configuration?   1
what is the advantage of persistent cache? when it should be used?   1
how to join two tables without using joiner transformation .advantages of joiner over lookup and vice versa.   5
Which type or t/s is used to convert rows into column & column into rows Infosys 7
how do u implement scheduling in Informatica? Cognizent 1
what types of repositories we can create in informatica? in real time in which type of repository we will work on?   2
I have a Flat file with more no. of Records also including duplicate values. But i need distinct values to one target and remaining records to another target in Informatica way   2
how do u set the size of block buffer?   1
what is the difference between OLTP database and data warehousing database?   2
what are Lookup caches options? Including persistent caches.   1
 
For more ETL Interview Questions Click Here 
 
 
 
 
 


   
Copyright Policy  |  Terms of Service  |  Articles  |  Site Map  |  RSS Site Map  |  Contact Us
   
Copyright 2013  ALLInterview.com.  All Rights Reserved.

ALLInterview.com   ::  KalAajKal.com