PODS
2008
ACM
14 years 4 months ago
2008
ACM
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...
PODS
2007
ACM
14 years 4 months ago
2007
ACM
Schema mappings are high-level specifications that describe the relationship between two database schemas. Two operators on schema mappings, namely the composition operator and th...
PODS
2005
ACM
14 years 4 months ago
2005
ACM
Schema mappings are high-level specifications that describe the relationship between database schemas. Schema mappings are prominent in several different areas of database managem...
PODS
2004
ACM
14 years 4 months ago
2004
ACM
A schema mapping is a specification that describes how data structured under one schema (the source schema) is to be transformed into data structured under a different schema (the...
WWW
2007
ACM
14 years 5 months ago
2007
ACM
Clio is an existing schema-mapping tool that provides user-friendly means to manage and facilitate the complex task of transformation and integration of heterogeneous data such as...
ICDT
2009
ACM
14 years 5 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...