A system, method and article of manufacture for query execution management in a data processing system and, more particularly, for optimizing execution of queries that are repeatedly executed against one or more databases in a data processing system. Preferably, this tube terminates with at least one air intake andor a plurality of outlets. Any of the side panels can be removed to obtain access to the interior of the apparatus, the remaining three panels forming a self-supporting structure. Another feature of the present invention is the efficient use of different networks with varying transmission speeds.