Datastage Sort in conjunction with Oracle Sort
Posted: Mon Nov 09, 2009 8:15 am
We are using Oracle read parallesim in datastage to run the same query on multiple nodes..Later we have to sort the data to remove dups.Is it better perform if we do Oracle Sort and Again Datastage Sort or just do datastage Sort? If the data is sorted in oracle before it goes to Datastage Sort,Is datastage clever enough to know that data is already sorted and will not take more time to Sort entire data again in datastage?
Thanks In Advance.
Thanks In Advance.