大规模多数据库系统的互操作机制

Large Multidatabase System Interoperability Mechanism

实现多数据库互操作的复杂性大大取决于多数据库系统中成员数据库的数目。随着多数据库系统中成员数据库数目的增大,利用现有技术来解决互操作性问题愈加困难,甚至是不可能的。目前数据共享的需求在不断增长,需要提供一个世界范围内的可互操作的环境,以实现正在日益增长的自治和异的成员数据库之间的信息共享。

Sharing data among disparate databases has so far mostly been achieved through some form of ad-hoc schema integration. This approach becomes less tractable as the number of participating database increases. In this paper,we first present the primary problems to be resolved in large multidatabase systems and discuss the autonomy and heteroheneity of large multidatabase systems and then describe a coalition agent mechanism to implement large multidatabase systems interoperation.