Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (27): 156-157.
• 数据库与信息处理 • Previous Articles Next Articles
ZHU San-yuan1,2,ZHU Fu-xi2,WEI Wen-cai1
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朱三元1,2,朱福喜2,魏文才1
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Abstract: A database could be inconsistent due to various causes,and the answer of query in an inconsistent database could be unauthentic.This paper defines a conversion operator T?棕(Q) of original query Q and applies Tω(Q) to arbitrary database to get consistent query answer.
Key words: integrity constraint, inconsistency, database repair, CQA
摘要: 数据库可能由于多种原因变得不协调,不协调的数据库中的查询结果可能是不可信的。定义了一种将原始查询Q做转换的运算符Tω(Q),将转换后的结果作用于数据库,可以得到协调的答案。
关键词: 完整性约束, 不协调, 数据库修复, 协调的答案
ZHU San-yuan1,2,ZHU Fu-xi2,WEI Wen-cai1. Method of effective query in inconsistent database[J]. Computer Engineering and Applications, 2007, 43(27): 156-157.
朱三元1,2,朱福喜2,魏文才1. 一种不协调数据库中有效查询的方法[J]. 计算机工程与应用, 2007, 43(27): 156-157.
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http://cea.ceaj.org/EN/Y2007/V43/I27/156