实现异构型DDBMS存取控制的ZZ视图管理机制

ZZ View Management Mechanism for Realizing Access Control in Heterogeneous DDBMSs

文中提出的ZZ视图管理机制,采用视图机制进行异构型DDBMS的存取控制,保证了节点自治,为分布于多节点上的数据查找提供控制功能和协调存取功能。

A new view management mechanism named ZZ, introducing view mechanism to access control in heterogeneous DDBMSs,is put in the paper. It satisfies site autonomy and offers the functions about control and access coorperation for searching for data distributed in multi-nodes.