摘要
数据库系统的安全保密性是评价ＤＢＭＳ性能的重要指标，也是ＤＢＭＳ追求的重要目标之一。本文介绍多媒体数据库管理系统ＤＭＺ的安全保密机制及实现技术。
Security of a database system is an important target that can be used to evaluate the performance of the DBMS. This paper discusses the security mechanism and itsimplementation of multimedia database management system DM2. DM2 provides several kinds of security policies according to the demands of users. A field level security protection mechanism is provided, which is not provided by common DBMS's.
出处
《计算机研究与发展》
EI
CSCD
北大核心
1996年第9期688-691,共4页
Journal of Computer Research and Development
