267 search results - page 18 / 54 » Schema Mapping as Query Discovery |
ICDT
2010
ACM
14 years 7 months ago
2010
ACM
It is known that the composition of schema mappings, each specified by source-to-target tgds (st-tgds), can be specified by a secondorder tgd (SO tgd). We consider the question of...
ICDE
2009
IEEE
14 years 4 months ago
2009
IEEE
This demonstration presents Galaxy, a schema manager that facilitates easy and correct data sharing among autonomous but related, evolving data sources. Galaxy reduces heterogenei...
ADBIS
1997
Springer
14 years 2 months ago
1997
Springer
A graphical formalized language is proposed for specifying systems of views over database schemas. The language is based on the notion of arrow (mapping) between data schemas and ...
SEMCO
2008
IEEE
14 years 4 months ago
2008
IEEE
This demonstration shows how semantic schema matching technology is being incorporated into the BEA AquaLogic Data Services Platform. Specifically, it demonstrates how the manuall...
HOTSWUP
2009
ACM
14 years 2 months ago
2009
ACM
The complexity, cost, and down-time currently created by the database schema evolution process is the source of incessant problems in the life of information systems and a major s...