| 基于元数据的分布异构数据集成研究 |
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| 引用本文： | 王宗杰,侯贵法,王成耀,涂序彦.基于元数据的分布异构数据集成研究[J].微计算机信息,2007,23(27):211-213. |
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| 作者姓名： | 王宗杰 侯贵法 王成耀 涂序彦 |
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| 作者单位： | 1. 北京科技大学,北京,100083
2. 100083,北京,北京科技大学;455000,安阳,安阳工学院 |
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| 基金项目： | 国家科技攻关项目;国家自然科学基金 |
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| 摘 要： | 将“虚拟法”和“数据仓库法”结合,通过统一的数据交换中心解决数字气田分布异构数据集成问题。建立包含全局模式和全局-局部映射的元数据字典,屏蔽异构数据细节,由此解决异构数据的各种冲突。提出一种由分布数据源的局部模式归并建立全局模式和映射表的算法,以提高模式集成的自动能力。
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| 关 键 词： | 分布异构数据集成 元数据 模式集成 数字气田 |
| 文章编号： | 1008-0570（2007）09-3-0211-03 |
| 修稿时间： | 2007-07-03 |
Research of Distributed Heterogeneous Data integration Based on Metadata |
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| WANG ZONGJIE,HOU GUIFA,WANG CHENGYAO,TU XUYAN.Research of Distributed Heterogeneous Data integration Based on Metadata[J].Control & Automation,2007,23(27):211-213. |
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| Authors: | WANG ZONGJIE HOU GUIFA WANG CHENGYAO TU XUYAN |
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| Affiliation: | WANG ZONGJIE HOU GUIFA WANG CHENGYAO TU XUYAN |
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| Abstract: | A solution to distributed heterogeneous data integration in digital gas field is introduced through united data exchange center, in which data warehousing approach and virtual approach are both used. Metadata dictionary is designed to shield the detail of heterogeneous data and solve the heterogeneous data conflicts, which includes the global schema and the mapping between global schema and local schema. A algorithm to build up the global schema and the mapping from local schema is given , which is used to improve the automatic ability of schema integration. |
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| Keywords: | Distributed heterogeneous data integration Metadata Schema integration Digital gas field |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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