1782 search results - page 11 / 357 » A Data Transformation Method Based on Schema Mapping |
106
click to vote
SIGMOD
2004
ACM
15 years 11 months ago
2004
ACM
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
102
click to vote
AMW
2009
15 years 23 days ago
2009
In data exchange, data are materialised from a source schema to a target schema, according to suitable source-to-target constraints. Constraints are also expressed on the target sc...
PVLDB
2010
14 years 10 months ago
2010
Applications typically have some local understanding of a database schema, a virtual database that may differ significantly from the actual schema of the data where it is stored...
123
click to vote
PODS
2008
ACM
15 years 11 months ago
2008
ACM
A schema mapping is a high-level specification that describes the relationship between two database schemas. As schema mappings constitute the essential building blocks of data ex...
ER
1994
Springer
15 years 3 months ago
1994
Springer
A logical database schema, e.g. a relational one, is an implementation of a speci cation, e.g. an entity-relationship diagram. Upcoming new data models and the necessity of seamle...