4137 search results - page 4 / 828 » Managing Expressions as Data in Relational Database Systems |
IDEAS
2009
IEEE
14 years 2 months ago
2009
IEEE
In designing dynamic situations such as cyberworlds, we the Incrementally Modular Abstraction Hierarchy (IMAH) to be an appropriate mathematical background to model dynamically ch...
BMCBI
2006
13 years 7 months ago
2006
Integration of heterogeneous data types is a challenging problem, especially in biology, where the number of databases and data types increase rapidly. Amongst the problems that o...
VLDB
2004
ACM
14 years 29 days ago
2004
ACM
We present an annotation management system for relational databases. In this system, every piece of data in a relation is assumed to have zero or more annotations associated with ...
CCS
2007
ACM
14 years 1 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 ...
SIGMOD
2005
ACM
14 years 1 months ago
2005
ACM
As XML has evolved from a document markup language to a widely-used format for exchange of structured and semistructured data, managing large amounts of XML data has become increa...