A system and method for compensating for functional differences between heterogeneous database management systems, wherein data associated with a client is distributed among the heterogeneous database management systems, is discussed. The system simulates support of multiple pending actions on a single...http://www.google.com.tw/patents/US6381595?utm_source=gb-gplus-share專利 US6381595 - System and method for compensation of functional differences between heterogeneous database management systems