An advanced message queuing system is integrated into a database system. A queue is an ordered list of messages. Messages are requests for processing by an application. Messages are database objects and can represent events or data. Messages comprise user data and control information such as a queue...http://www.google.es/patents/US6058389?utm_source=gb-gplus-sharePatente US6058389 - Apparatus and method for message queuing in a database system
Apparatus and method for message queuing in a database system