Having the constraints defined in the database allows DB2 to know relationships between tables and in some cases allows it to select better access plans based on that knowledge.
在数据库中定义约束使DB 2可以知道表之间的关系，并且在某些情况下允许DB 2根据这样的知识选择更好的访问计划。
Based on the work stated above, a prototype system that can utilize multi-extending concept lattice classification knowledge discovery in database is implemented.
在上述研究工作的基础上，实现了基于多扩展概念格的分类知识发现原型系统。
Some methods for dividing continuous attributes in KDD (knowledge discovery in database) and a method based on VDM (value difference metric) are presented.
介绍了在数据库知识发现(KDD)中将连续属性离散化的一些方法，并提出使用值差分度量离散化的算法。
Illustrated access to knowledge on the approaches and steps and express formula, established a system of knowledge model and a relationship database based on the knowledge base.
本文阐述了知识的获取方式、步骤和表达式，建立了诊断系统知识模型和基于关系数据库的知识库。
This work investigates strategies for building an Expert Database System (EDS) based on RDBMS, assert that a RDBMS can perform knowledge-based reasoning in addition to its other tasks.
介绍了用RDBMS建立大型知识库系统（EDS）的一种策略，通过研究实践，确信RDBMS除了它已具有的数据库管理功能外，经过改进，它可以实现对知识的推理功能。
Based on this process knowledge database, the springback Angle could be obtained by using CBR which makes the number of experiment reduce and elevations the efficiency of nc tube bending.
在数控弯管工艺知识库的基础上，通过运用CBR方法，得到了弯管回弹角，减少了试弯次数，提高了数控弯管效率。
Based on these, this paper presents a data warehouse inheritance system adding the knowledge database, naming personal information integration system.
本文基于此提出了一个添加了知识库的数据仓库集成系统，即个人信息融合系统。
NT1 is a conformance test system based on the knowledge base for the relational database SQL language standard.
NT 1是基于知积库的关系数据库sql标准一致性测试系统。
Database of control guidance expert system is established based on database technology. Methods of knowledge acquisition, representation and organization are studied.
建立了基于数据库技术的控制指导专家系统知识库，研究了知识库知识获取方式、表示方式和组织方式。
Based on theory researches and practical development conditions of fuzzy database, some problems about knowledge discovery are explored in the crime fuzzy database.
根据模糊数据库的理论研究及实际开发状况，对犯罪模糊数据库中知识发现的几个问题进行了探讨。
This paper puts forward the model based on product configuration, the conception of part and component and the way of product configuration by knowledge and rule in database.
为此，文章提出基于配置的产品模型和零部件族的概念、利用知识库和规则库实现产品配置的方法。
This paper puts forward the model based on product configuration, the conception of part and component and the way of product configuration by knowledge and rule in database.
为此，文章提出基于配置的产品模型和零部件族的概念、利用知识库和规则库实现产品配置的方法。
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