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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
 
How to load Session Statistics (Workflow name, TgtRows, Rejected Rows, SessStartTime,SessEndTime..)into a database table ?? Another Question: I want to pass values from oracle table or Flat file in Mapping parameter/Variable.. What is the method for that..Please provide me the solution step by step   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
when should one create lookup transformation ?   2
you have created a lookup transformation for a certain condition which if true returns multiple rows. when you go to the target and see only one row has come and not all. why is it so and how it can be corrected.   3
what is the difference between date cache and lindex cache?   1
How can write SQL Overwrite to get Daynamic rows from the source in SQ transformation!(Any Example)   1
What is the main difference between peek stage and copy stage   2
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
how to answer the question "explain project architecture" in informatica pls any one who has the answer pls send the answer to this mail id "karumanchisrinu@gmail.com TCS 1
what are Lookup caches options? Including persistent caches.   1
what is a test load?   3
Can we parametrize the values of IN statement. Ex. Inside parameter file: Parameter='A','B','C' Inside Code: IN (INPUT_CHARACTER, $$Parameter) Cognizent 2
 
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