摘要
在大型ＭＩＳ系统中建有许多表和视图，对这些数据库资源的存取授权管理十分复杂，而由用户直接管理数据库中的资源的存取授权十分困难。将用户－角色授权模型引入数据库系统授权管理，限制了ＤＢＡ的权利，简化了系统的授权管理。
There are a lot of tables and views in MIS.It is very complex to administrate the access privileges of these database resources and it is very difficult for a user to administrate them directly.This paper presents a user-role authorization model in a database system.Through introducing it to MIS,the privileges of DBA can be restricted and the administration of authorization becomes easy.
出处
《计算机工程与应用》
CSCD
北大核心
1999年第3期72-74,共3页
Computer Engineering and Applications
关键词
管理信息系统
授权管理
数据库
MIS
Privilege, Role, Database Management System(DBMS),Authorization
