1142 search results - page 46 / 229 » On Supporting Containment Queries in Relational Database Man... |
115
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VLDB
2005
ACM
15 years 3 months ago
2005
ACM
The major relational database systems have been providing XML support for several years, predominantly by mapping XML to existing concepts such as LOBs or (object-)relational tabl...
109
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EDBT
2009
ACM
14 years 7 months ago
2009
ACM
Data Stream Management Systems (DSMS) operate under strict performance requirements. Key to meeting such requirements is to efficiently handle time-critical tasks such as managing...
149
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SIGMOD
2007
ACM
15 years 10 months ago
2007
ACM
Optimizing SQL subqueries has been an active area in database research and the database industry throughout the last decades. Previous work has already identified some approaches ...
CSUR
1998
14 years 9 months ago
1998
Search operations in databases require some special support at the physical level. This is true for conventional databases as well as for spatial databases, where typical search o...
CCS
2007
ACM
15 years 4 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 ...