Some Generic Correspondences to Define Object Databases on Top of Relational Databases 1995 2 citations ? 0 self


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    • Author:  by Franck Lebastard  

    • Abstract:  Introduction As researchers in Arti?cial Intelligence, our ?rst aim was to allow our expert system shell Smeci [Sme90] the access to relational databases during reasoning. We also needed to save in a database complex objects that seemed interesting for further utilization, in particular the knowledge bases and the results of reasoning. To this end, we have de?ned generic correspondences [Leb93] between relational concepts and some of the object concepts that are common to most object models. These correspondences allow to translate relational data into complex objects and conversely. They generalize the mapping proposals that we found in the literature [Lee90, WBL+91, KJA93]. An implementation of these de?nitions has been realized. This is the Driver system [Leb92] whose speci?city is to de?ne an object oriented dbms (oodbms) on a relational dbms (rdbms). In Driver,

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