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고진광,고병오,박대식 순천대학교 기초과학연구소 1992 基礎科學硏究誌 Vol.3 No.-
DBMS offers information to users which is stored in database. Therefore, DBMS does not provide users with needed informations unless it is stored in database. This paper studies adding inferential facility to informix existing relational DBMS, designs and implements IFES(Inferential Front-end System) to provide wider and more accurate information. TBKEY(Table Key) table and RNT(Relation Name Table) are also stored in IDB to support inferential facility. TBKEY table contains name of certain database and key attribute of the relation and RNT contains name of database and name of head and body tables related with the relation. And it is possible for informix to manage these tables. This paper puts emphasis on storing tables of IDB in informix not in the form of file but in the form of relation like existing database.