Schema Evolution in Heterogeneous
نویسنده
چکیده
This paper presents a new approach to schema evolution which combines the activities of schema integration and schema evolu tion into one framework In previous work we have developed a general framework to support schema transformation and integration in hetero geneous database architectures Here we show how this framework also readily supports evolution of source schemas allowing the global schema and the query translation pathways to be easily repaired as opposed to having to be regenerated after changes to source schemas
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تاریخ انتشار 2003