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... integration and schema evolution into one framework. In previous work we have developed a general framework to support schema transformation and integration in heterogeneous database architectures. Here we show how this framework also ...
Publication - cat - 09/13/2022 - 17:45 - 0 comments - 0 attachments
... and extension) are available. The strategy of evolution in which our architecture is based is that of lsquoforward database ... down to the logical schema and to the extension. In order to put into practice this strategy, each component of a database is ... a translation information system is considered in order to manage the translation of conceptual elements into logical schema ...
Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment
... 50 - 99 In this paper, we address the issues related to the evolution and maintenance ... sources. The data of the data warehouse is used primarily in organizational decision-making and may be strategic. Therefore, the schema ...
Publication - erhard - 04/17/2013 - 09:05 - 0 comments - 0 attachments
... (or view). However, existing support is lacking in two ways. First, change primitives as presented in literature are very limiting in terms of their capabilities allowing users ...
Publication - cat - 04/17/2013 - 06:38 - 0 comments - 0 attachments
... of integrated Web data. One of the main challenges in these systems is to deal with the volatile and dynamic nature of Web sources. In this work we address the effects of adding/removing/changing Web sources and ...
Publication - cat - 04/17/2013 - 05:27 - 0 comments - 0 attachments
... construction and maintenance of data warehouses (views) in large-scale environments composed of numerous distributed and evolving ... the problem of schema changes of ISs, while previous work in this area, such as incremental view maintenance, has mainly dealt with data ...
Publication - cat - 04/16/2013 - 02:27 - 0 comments - 0 attachments
... 252.55 KB An important issue in data integration is the integration of semantically equivalent but ... source restructuring for such databases have been proposed in the literature, such as the SQL extension SchemaSQL. However, the issue of incremental maintenance of views defined in such languages remains an open problem. We present an incremental view ...
Publication - cat - 04/15/2013 - 22:27 - 0 comments - 1 attachment