In one embodiment, a data processing system includes a first database 304 maintained by a first party (such as a customer); a second database 324, 328 maintained by a second party (such as a vendor) different from the first party; a work queue 316 to specify data to be added to the second database; an...http://www.google.com.tw/patents/US7752230?utm_source=gb-gplus-share專利 US7752230 - Data extensibility using external database tables
