Answer Posted / kittu

hi every one

i read all the answers i agree with you but one more thing is there in joiner. once u specify d joiner it will extract all the data from source and check the based on condition then it returns values.

in look up it wont take any values but it refers based on condition.It means look up check the values present r not.
here main thing is memory if cache size is increase it decrease the informatica performance.same thing will happen in joiner trans so mostly we r not using joiner but some times based on source data we use.

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