Towards a Flexible Relational Database Query System

R. Mama, M. Machkour, K. Ahkouk, K. Majhadi
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引用次数: 1

Abstract

In many cases information is found to be naturally fuzzy or imprecise, that's why flexible query systems have become indispensable to represent and manage this information and especially facilitate interrogation to a non-expert user, the problem is that Boolean queries do not allow the user to use vague and imprecise language terms in the qualification criteria of the searched data or to express preferences between these criteria. Nowadays, there are many proposals that allow users to make flexible queries on relational databases. In this paper, we will briefly review the main attempts to find a perfect solution to this problem, highlighting their advantages, disadvantages and difficulties encountered. Finally, as a result of this comparative study, we present an intended model of the flexible relational database query system.
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一个灵活的关系数据库查询系统
在许多情况下,发现信息自然是模糊或不精确的,这就是为什么灵活的查询系统已经成为表示和管理这些信息的必要条件,特别是方便非专业用户的查询,问题是布尔查询不允许用户在搜索数据的资格标准中使用模糊和不精确的语言术语,或者在这些标准之间表达偏好。现在,有许多建议允许用户对关系数据库进行灵活的查询。在本文中,我们将简要回顾主要的尝试,以找到一个完美的解决方案,突出他们的优点,缺点和遇到的困难。最后,作为比较研究的结果,我们提出了一个灵活的关系数据库查询系统的预期模型。
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