A query-maintenance language for the data independent accessing model II

摘要

FORAL is a data base language designed specifically for the access to binary semantic network structures at the DIAM II Infological Level. It is a non-procedural language, that has some of the characteristics of natural English. The user writes transactions in terms of real world things and their attributes rather than in terms of fields, records, and files. A review of the original FORAL led to FORAL II described in this paper, offering a more readable syntax, in particular for long documents.