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Question
what are Lookup caches options? Including persistent caches.
 Question Submitted By :: Jakki
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what are Lookup caches options? Including persistent caches.
Answer
# 1
There are two types of Lookup Cache options -

1. Dynamic cache.
2. Persistent cache

1. dynamic Cache - The Dynamic cache is a property of the
look up which if selected makes other ports of the same
record to be checked as Look up apart from the Look up port.

2. Persistent Cache - persistent cache is something like on
the first run the lookup table values gets into a cache and
is stored on the server's hard disk. Each time the run is
made the values would be looked up from this cache only.

Persistent cache is done only when the lookup has to be
made on same set of values each time.
 
Is This Answer Correct ?    2 Yes 1 No
Abhishek.x.upadhyay
[Accenture]
 

 
 
 
Other ETL Interview Questions
 
  Question Asked @ Answers
 
How to Check the source record count from traget table. IBM 5
what happens if the info.server doesn't find the session parameter in the parameter file?   2
How can we handle Rejection Logic in Source tables while we are matching the data in Target side in ETL Testing ?   1
how to join two tables without using joiner transformation .advantages of joiner over lookup and vice versa.   2
what is a test load?   3
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
how do u automate Extraction process?   1
Eliminating of duplicate records without using dynamic lookups   1
what is the difference between shortcut of an object and copy of an object? compare them?   1
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
Where can i get informatica certification Exam dumps and details? please forward it to emailid: krisboppana@yahoo.com NexGen 307
Can anyone please send me the latest informatica dumps (power center 8.1.1) for all the three exams? My mail id is yokilamai@gmail.com   1
 
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