摘要： 本文介绍了一种工程数据库语言OSQL,它是在SQL中引入OO概念和思想后扩展而成的.文中介绍了OSQL的设计原则、方法、特点及其在CIMS/EDBMS中的实现.＊

关键词: 工程数据库, 面向对象, SQL

Abstract: This paper introduces an engineering database language OSQL, which is extended from SQL when the latter has been incorporated with O-O concepts and principles.In this paper, the design principle, method, characteristics and implementation of OSQL in an engineering database management system CIMS/ EDBMS are described.