INTEGRATION OF DATABASE SYSTEMS AT THE NAVIGATIONAL LEVEL BY USING PROLOG

概要

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In the distributed database system, views independent of heterogeneity of database systems have to be provided. We adopt a Prolog-like system as the common interface on the database systems. Although many researchers have tried to integrate multiple database systems at the higher level like the relational model, we try to integrate them at the lower, navigational level. In this paper, we try to get an efficient access program from the non-procedural Prolog-like query on the navigational database systems like the conventional network database systems, UNIX file systems, and even relational database systems. Our method aims at reducing not only the number of access units but also the number of redundant answers. Also, the access program is tried to be executed in parallel.
一般社団法人情報処理学会の論文
1990-03-14