方向二元实体-关系模型的代数

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI:10.1109/ICDE.1984.7271212

Peter P. Chen

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引用次数: 36

摘要

实体-关系模型有许多版本。本文提出了具有方向关系的二元ER模型的代数。所提出的代数可以作为ER数据库管理系统的数据操作语言的基础。

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An algebra for a directional binary entity-relationship model

There are many versions of Entity-Relationship (ER) Models. This paper proposes an algebra for a binary ER model with directional relationships. The proposed algebra can be used as the basis of a data manipulation language for an ER database management system.

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1984 IEEE First International Conference on Data Engineering

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