PROBLEM TO BE SOLVED: To provide an object-oriented database for realizing data protection in a further detail stage and further high retrieval efficiency. SOLUTION: Information indicating the presence of absence of access limit to an instance object, the presence or absence of the permission of ...
In this paper, we propose an approach and basic constructs to realize a fuzzy database processing capability on an Object-Oriented Database (OODB) system. The proposed approach can manage several types of uncertainties: (1) uncertain objects, (2) uncertain relationships between instance objects, (...
Thor is a new object-oriented database management system (OODBMS), intended to be used in heterogeneous distributed systems to allow programs written in di... B Liskov,M Day,L Shrira 被引量: 0发表: 1992年 Exotica/FMDC: A workflow management system for mobile and disconnected clients Workflo...
On the basis of both navigational technique and declarative technique of conventional databases, this paper presents a new strategy for object oriented database system (OODBS) queries: Any reference query in OSQL should be pre processed before its actual performance. It is after this query pre pro...
This paper addresses the problem of understanding the current set of commercially available object-oriented database systems. It proposes a classification of these systems based on their external behavior and on the target customers they are aimed at. Th
网络对象数据库 网络释义 1. 对象数据库 HCSS使用面向对象,体系结构围绕一个对象数据库(Object Oriented Database Management System)建立,同时使用隔离 … earth.bao.ac.cn|基于 1 个网页 例句 释义: 全部,对象数据库
An object-oriented database is a type of database that incorporates both data and functions in an object-oriented framework. It utilizes object-oriented programming to manipulate objects and their associated data, which is organized and managed by an object database management system. ...
A system and method for processing database queries. An optimizer produces query plans based on queries. Query plans are stored in a persistent storage. In response to receiving a query, the system selectively retrieves a stored query pl... C Cunningham,B Baryshnikov,X Jiang - US 被引量: ...
The security model treats the data model as well as the computational model of object-oriented systems allowing more flexibility. This model trades an increase in complexity for a more flexible security model.关键词: Secure database Data classification Object-oriented model Security entities ...
Most query languages offer a set of powerful operators but unfortunately, this set is not extensible. In this paper, we describe the functional query language LIFOO that we designed for the object oriented database system O2. LIFOO allows users to define functional operators. We discuss this me...