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Dec 16, 2002 · In an environment of heterogeneous data sources it may be necessary to integrate these in order to provide a single global view to the data.
Abstract. In an environment of heterogeneous data sources it may be necessary to integrate these in order to provide a single global view to the data.
A careful specification of data structures and algorithms allows for using mappings of this kind in a generic mediation system by imposing constraints on ...
In an environment of heterogeneous data sources it may be necessary to integrate these in order to provide a single global view to the data.
Explicit representation of constrained schema mappings for mediated data integration. Christian Altenschmidt,; Joachim Biskup. TUDO Icon. 2002. in Databases in ...
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The proposed mediation framework supports integrated query processing based on the semantic mapping between the global schema type and the local schema types.
In this article, we address the problem of changing the constraints of a mediated schema to accommodate the set of constraints of a new export schema.
To answer queries, the data-integration system uses a set of semantic mappings between the mediated schema and the local schemas of the data sources. The ...