A Simple Approach to Relational Algebra Query Language Design

机译：关系代数查询语言设计的一种简便方法

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摘要

A design process for a query language based on relational algebra is described. Some key principles applied were: make explicit assumptions about the end users background; delimit the scope of the language; and avoid conceptual innovations as far as possible. The language designed closely mirrors concepts from elementary algebra and set theory and contains no join or relational division, although it is relationally complete. The only significant innovation in the query language context is a hierarchical tuple structure similar to the record hierarchy of COBOL and PASCAL, a mechanism for defining functions on the tuples of a relation, used for restriction, generalized projection and quantification.

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作者
Arnborg, S.;
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年度 1980
页码 p.1-18
总页数 18
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Algebra; Data bases; Data retrieval; Information retrieval; Programming languages; Hierarchies; Human factors engineering; Mathematical logic; Records; Set theory; Syntax;

机译：代数;数据库;数据检索;信息检索;程序设计语言;层次结构;人因工程;数学逻辑;记录;集合论;句法;

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1. A Database Querying Language for Formulating Relational Queries on Small Devices [J] . Ahmad Rohiza, Abdul-Kareem Sameem 计算机技术与应用：英文 . 2011,第003期

机译：用于在小型设备上制定关系查询的数据库查询语言
2. Query Performance of the IFC Model Server Using an Object-Relational Database Approach and a Traditional Relational Database Approach [J] . Ghang Lee, Jiyong Jeong, Jongsung Won, Journal of Computing in Civil Engineering . 2014,第2期

机译：使用对象关系数据库方法和传统关系数据库方法的IFC模型服务器的查询性能
3. Using Feature-Based Description Logics to avoid Duplicate Elimination in Object-Relational Query Languages [J] . Toman David, Weddell Grant Kunstliche Intelligenz . 2020,第3期

机译：使用基于特征的描述逻辑以避免对象关系查询语言中的重复消除
4. A Multi-set Relational Algebra in View of Universal Query Language [C] . Piotr Wisniewski International Conference on Trusted Systems . 2013

机译：鉴于Universal查询语言的多种关系代数
5. The relational algebra toolkit: A user-friendly approach to presenting and processing relational algebra queries on the web. [D] . Miller, Jeremy J. 2013

机译：关系代数工具包：一种用户友好的方法，用于在网络上呈现和处理关系代数查询。
6. Supporting temporal queries on clinical relational databases: the S-WATCH-QL language. [O] . C. Combi, L. Missora, F. Pinciroli 1996

机译：在临床关系数据库上支持时态查询：S-WATCH-QL语言。
7. Equivalence of Relational Algebra and Relational Calculus Query Languages Having Aggregate Functions [O] . Klug, Anthony C 1980

机译：具有聚合函数的关系代数和关系微积分查询语言的等价性
8. Design of an Algorithm to Translate Nested Relational Algebra Queries to GENESIS Trace Manager Commands [R] . Hartman, A. F. 1987

机译：嵌套关系代数查询转换为GENEsIs跟踪管理器命令的算法设计

A Simple Approach to Relational Algebra Query Language Design

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