145 search results - page 3 / 29 » A Multi-Purpose Implementation of Mandatory Access Control i... |
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
Many enterprise applications prefer to store XML data as a rich data type, i.e. a sequence of bytes, in a relational database system to avoid the complexity of decomposing the dat...
DBSEC
2009
13 years 9 months ago
2009
Reflective Database Access Control (RDBAC) is a model in which a database privilege is expressed as a database query itself, rather than as a static privilege in an access control ...
BTW
2003
Springer
14 years 2 months ago
2003
Springer
Abstract: In order to achieve efficient execution plans for queries comprising userdefined data types and predicates, the database system has to be provided with appropriate index ...
SIGMOD
2001
ACM
14 years 9 months ago
2001
ACM
Virtually all proposals for querying XML include a class of query we term "containment queries". It is also clear that in the foreseeable future, a substantial amount of...
CCS
2007
ACM
14 years 2 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...