2338 search results - page 29 / 468 » Using UML to model relational database operations |
129
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VLDB
2004
ACM
15 years 9 months ago
2004
ACM
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...
129
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ACISICIS
2007
IEEE
15 years 10 months ago
2007
IEEE
ORN Additive is a prototype tool that was developed to show how the gap between database modeling and implementation can be reduced—more specifically, to show how associations d...
219
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VLDB
2004
ACM
16 years 4 months ago
2004
ACM
Ranking queries produce results that are ordered on some computed score. Typically, these queries involve joins, where users are usually interested only in the top-k join results....
155
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JLP
2006
15 years 4 months ago
2006
We present a formal framework for notions related to testing and model based test generation for a behavioural subset of UML Statecharts (UMLSCs). This framework builds, on one ha...
142
Voted
CCS
2007
ACM
15 years 10 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 ...