OBJECT-ORIENTED QUERY LANGUAGES - THE NOTION AND THE ISSUES

被引：42

作者：

BERTINO, E

NEGRI, M

PELAGATTI, G

SBATTELLA, L

机构：

[1] UNIV BRESCIA,FAC INGN,DIPARTIMENTO AUTOMAZ IND,BRESCIA,ITALY

[2] POLITECN MILAN,DIPARTIMENTO ELETTR,I-20133 MILAN,ITALY

来源：

IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING | 1992年 / 4卷 / 03期

关键词：

DATA MODELS; OBJECT-ORIENTED DATABASES; OBJECT-ORIENTED LANGUAGES; PREDICATE CALCULUS; QUERY LANGUAGES;

D O I：

10.1109/69.142014

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Query languages are an important component of any data management system. Therefore, recent object-oriented DBMS's provide (or plan to provide) some associative query capabilities. Because of the increased complexity of the data model, designing a suitable query language raises new issues. In this paper, we describe how the characteristics of an object-oriented data model, such as object identity, complex object structure, methods, and class hierarchies, have an impact on the design of a query language. We also point out major differences with respect to relational query languages.

引用

页码：223 / 237

页数：15