【摘要】 为提高对象数据库的表达能力,该文提出了一种新的对象概念——内涵对象(IODB)。它是从演绎库的IDB的概念发展而来的,井称为IODB。IODB用演绎对象数据库语言FLOOR实现,不仅丰富了面向对象数据库的表达能力,而且对减少演绎对象库的程序搜索空间、提高运算效率也有明显的作用。更多还原

【Abstract】 In This paper, we suggest a new term IODB(Intensional Object Oriented Database) to represent a certain kind of class in object oriented databases. It combines EDB, IDB in Datalog with OO concept. IODB provides users with ability to define recursive objects. We use a rule-based language-FLOOR, to describe the IODB objects. It impressively improves the expressive power of OO and DOOD database, and reduces the searching space of DOOD program execution.更多还原