Reading one Dataset multiple times in parallel job
Posted: Sun Oct 24, 2010 10:33 pm
Hi,
My requirment is to replicate the logic of oracle user defined function into datastage and my database is netezza which does not support these types of user defined functions. So for that i have prepared one parallel job for achieving the same thing with the help of DS job but because of the business logic i had to use one particular dataset 7 times (As lookup) in that single job.
So i just wanted to know whether referring one dataset in this way will make any performance impact ?
My requirment is to replicate the logic of oracle user defined function into datastage and my database is netezza which does not support these types of user defined functions. So for that i have prepared one parallel job for achieving the same thing with the help of DS job but because of the business logic i had to use one particular dataset 7 times (As lookup) in that single job.
So i just wanted to know whether referring one dataset in this way will make any performance impact ?