objectoriented database management system的意思是面向对象的数据库管理系统。以下是关于面向对象的数据库管理系统的几个关键点:面向对象:这种数据库管理系统采用面向对象的技术和思想来设计和实现。面向对象技术强调将数据和操作数据的方法封装在一起,形成一个独立的实体。数据管理:作为数据库管理系统,它...
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 ...
An object oriented DBMS thus follows an object oriented data model with classes (the schema of objects), properties and methods. An object is always managed as a whole. This means for example, that the insertion of an object, which in arelational systemwould probably be stored in multiple ta...
Metamodel for Object-Oriented Database Management Systems A database metamodel is inherent to every DBMS. Appropriate constructs reflect the declarations of data-definition and data-manipulation languages, and are necessary to implement the internal DBMS mechanisms. Particularly, a metamodel de... P ...
object DBMS) object databaseA database that is managed by an object-oriented database management system (ODBMS). Object databases are closely aligned with a particular object-oriented programming language and enable the data in the objects to be persistently stored without requiring conversion to a...
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This paper presents an approach for providing access control in OSQL, an object-oriented database language that supports, among others, user-defined abstract data types, multiple inheritance, and late binding. The authorization scheme is based on a singl
This DBMS can also be used for knowledge representation, and is well-suited to the design of queries in natural language. The system VORAS is an object-oriented DBMS developed from a specific model of representation called the Property Driven Model (PDM). A user may write a query in natural...
Object types allow for realistic data modeling. Complex real-world entities and relationships map directly into object types. Moreover, object types map directly into classes defined in object-oriented languages such as Java and C++. Now your programs can better reflect the world they are trying ...
DO2 is a deductive object-oriented database developed at the National University of Singapore. The system aims to integrate deductive and object-oriented paradigms and use their advantages to overcome both the paradigms’ respective weaknesses. DO2 diffe