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what are Lookup caches options? Including persistent caches.
 Question Submitted By :: ETL
I also faced this Question!!     Answer Posted By  
# 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

Other ETL Interview Questions
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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 normal & bulk loading? and which one is recommended ? why?   2
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Hi, Lookup() is what kind of join ? Satyam 5
How to Check the source record count from traget table. IBM 5
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what is the difference between OLTP database and data warehousing database?   2
can Informatica be used as a cleansing tool? If yes, give examples of transformations that can implement a data cleansing routine.   1
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