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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
 
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How to Check the source record count from traget table. IBM 5
how do u implement unconn.stored proc. in a mapping?   1
we hava more than 1000 records. i have to select first 5 record, last 5 record and 5 records from middle of the source. how can i do in oracle as well as in informetica??   4
what is the difference between date cache and lindex cache?   1
in sap bw project at what scenario generic extraction is used and why explain and also tell why you used calendar day option explain? Accenture 2
what types of repositories we can create in informatica? in real time in which type of repository we will work on?   2
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
what are the different Reporting and ETL tools available in the market?   3
working of line item dimension......pls,tell overall flow   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 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
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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