46 search results - page 6 / 10 » Universal Temporal Extensions for Database Languages |
169
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ICDT
2009
ACM
15 years 10 months ago
2009
ACM
Schema mappings are declarative specifications that describe the relationship between two database schemas. In recent years, there has been an extensive study of schema mappings a...
167
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ICDT
2009
ACM
15 years 10 months ago
2009
ACM
Marx and de Rijke have shown that the navigational core of the w3c XML query language XPath is not first-order complete ? that is it cannot express every query definable in firsto...
VLDB
1999
ACM
15 years 2 months ago
1999
ACM
Motivated to a large extent by the substantial and growing prominence of the World-Wide Web and the potential benefits that may be obtained by applying database concepts and tech...
ACL
1997
14 years 11 months ago
1997
Verbal and compositional lexical aspect provide the underlying temporal structure of events. Knowledge of lexical aspect, e.g., (a)telicity, is therefore required for interpreting...
VLDB
1999
ACM
15 years 2 months ago
1999
ACM
In this paper, we describe our recent experiences in adding a number of object-relational extensions to the DB2 Universal Database UDB system as part of a research and developme...