173 search results - page 18 / 35 » Model-independent schema translation |
OTM
2005
Springer
15 years 3 months ago
2005
Springer
We propose to enhance a schema integration process with a validation phase employing logic-based data models. In our methodology, we validate the source schemas against the data mo...
BNCOD
2004
14 years 11 months ago
2004
When storing data in heterogeneous databases, one of the top-down design issues concerns the usage of multiple query languages. A common language enables querying of database schem...
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PODS
2011
ACM
14 years 16 days ago
2011
ACM
In the traditional data exchange setting, source instances are restricted to be complete in the sense that every fact is either true or false in these instances. Although natural ...
COOPIS
1994
IEEE
15 years 1 months ago
1994
IEEE
In this paper, we present a query translation algorithm which allows object-oriented queries to be automatically translated into a relational query language. Our goal is to provid...
VLDB
2004
ACM
15 years 3 months ago
2004
ACM
We consider the problem of data sharing between autonomous data sources in an environment where constraints cannot be placed on the shared contents of sources. Our solutions rely ...