1142 search results - page 54 / 229 » On Supporting Containment Queries in Relational Database Man... |
116
click to vote
CCS
2008
ACM
15 years 1 months ago
2008
ACM
We propose an approach for the selective enforcement of access control restrictions in, possibly distributed, large data collections based on two basic concepts: i) flexible autho...
110
click to vote
SIGMOD
2011
ACM
14 years 2 months ago
2011
ACM
We study the problem of generating synthetic databases having declaratively specified characteristics. This problem is motivated by database system and application testing, data ...
WAIM
2005
Springer
15 years 5 months ago
2005
Springer
In order to lay a solid foundation for the emerging semantic web, effective and efficient management of large RDF(S) data is in high demand. In this paper we propose an approach t...
101
click to vote
XSYM
2004
Springer
15 years 5 months ago
2004
Springer
Processing XML documents in multi-user database management environments requires a suitable storage model of XML data, support of typical XML document processing (XDP) interfaces, ...
121
click to vote
ICDT
2010
ACM
15 years 1 months ago
2010
ACM
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...