数据集成系统中的否定查询

Z. Majkic
{"title":"数据集成系统中的否定查询","authors":"Z. Majkic","doi":"10.1109/IDEAS.2005.47","DOIUrl":null,"url":null,"abstract":"Data integration is the problem of combining data residing at different sources, and providing the user with a unified view of these data. It is characterized by an architecture based on a global schema, with the set of integrity constraints, and a set of sources. In this paper, we investigate the way in which Closed World Assumption on a source data base can be coherently propagated to the global schema. The problem to resolve is directly connected by the fact that a global schema has a number (possibly infinite) of minimal models, caused by the incompleteness of source databases w.r.t. the integrity constraints over global schema. The aim of this preliminary work is to open the perspective for query language with negation in data integration framework.","PeriodicalId":357591,"journal":{"name":"9th International Database Engineering & Application Symposium (IDEAS'05)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Querying with negation in data integration systems\",\"authors\":\"Z. Majkic\",\"doi\":\"10.1109/IDEAS.2005.47\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Data integration is the problem of combining data residing at different sources, and providing the user with a unified view of these data. It is characterized by an architecture based on a global schema, with the set of integrity constraints, and a set of sources. In this paper, we investigate the way in which Closed World Assumption on a source data base can be coherently propagated to the global schema. The problem to resolve is directly connected by the fact that a global schema has a number (possibly infinite) of minimal models, caused by the incompleteness of source databases w.r.t. the integrity constraints over global schema. The aim of this preliminary work is to open the perspective for query language with negation in data integration framework.\",\"PeriodicalId\":357591,\"journal\":{\"name\":\"9th International Database Engineering & Application Symposium (IDEAS'05)\",\"volume\":\"53 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2005-07-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"9th International Database Engineering & Application Symposium (IDEAS'05)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IDEAS.2005.47\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"9th International Database Engineering & Application Symposium (IDEAS'05)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IDEAS.2005.47","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7

摘要

数据集成是将来自不同数据源的数据组合起来,并向用户提供这些数据的统一视图的问题。它的特点是基于全局模式的体系结构,具有一组完整性约束和一组源。在本文中,我们研究了源数据库上的封闭世界假设可以连贯地传播到全局模式的方法。要解决的问题与以下事实直接相关:全局模式有许多(可能是无限的)最小模型,这是由源数据库的不完整性造成的,而不是全局模式上的完整性约束。本初步工作的目的是为数据集成框架中具有否定性的查询语言打开前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Querying with negation in data integration systems
Data integration is the problem of combining data residing at different sources, and providing the user with a unified view of these data. It is characterized by an architecture based on a global schema, with the set of integrity constraints, and a set of sources. In this paper, we investigate the way in which Closed World Assumption on a source data base can be coherently propagated to the global schema. The problem to resolve is directly connected by the fact that a global schema has a number (possibly infinite) of minimal models, caused by the incompleteness of source databases w.r.t. the integrity constraints over global schema. The aim of this preliminary work is to open the perspective for query language with negation in data integration framework.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信