On Wed, Dec 2, 2009 at 8:52 AM, Juan Miranda <jcmiranda@xxxxxxxxx> wrote: > Do you put some little parallelism on OLTP databases? Short answer - no. PX is designed for Data Warehouses. I'd suggest this for starters: Oracle SQL Parallel Execution http://www.oracle.com/technology/products/bi/db/11g/pdf/twp_bidw_parallel_execution_11gr1.pdf -- Regards, Greg Rahn http://structureddata.org -- //www.freelists.org/webpage/oracle-l