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 ETL interview questions  ETL Interview Questions (195)
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Question
what are Lookup caches options? Including persistent caches.
 Question Submitted By :: ETL
I also faced this Question!!     Answer Posted By  
 
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
 

 
 
 
Other ETL Interview Questions
 
  Question Asked @ Answers
 
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
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 are business components in Informatica?   1
Difference between flat files and relational sources?   2
indatastage 8.1 surrgoate key generates seqences numbers write but there is limite value i want to reset the seqence after gettting some highest value like i want o/p like this 1 2 3 4 5 .............10000 1 2 3.........10000 TCS 1
what happens if the info.server doesn't find the session parameter in the parameter file?   1
What are the new features of informatica 9 version?   2
how to join two tables without using joiner transformation .advantages of joiner over lookup and vice versa. CTS 2
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
Two different admin users created for repository are________and_________.   1
Can we parametrize the values of IN statement. Ex. Inside parameter file: Parameter='A','B','C' Inside Code: IN (INPUT_CHARACTER, $$Parameter) Cognizent 2
What is factless fact schema?   3
 
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