| 分布式地质图空间数据库数据交换系统的设计与实现 |
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| 引用本文： | 杨林,周顺平,万波.分布式地质图空间数据库数据交换系统的设计与实现[J].测绘科学,2007,32(3):151-152,116. |
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| 作者姓名： | 杨林 周顺平 万波 |
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| 作者单位： | 中国地质大学,研究生院,武汉,430074;中国地质大学,信息工程学院,武汉,430074 |
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| 基金项目： | 国家863计划:基于大型GIS地质调查空间数据库管理系统(2003AA132010) |
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| 摘 要： | 分布式地质图空间数据库具有数据分布、数据源异构、地质实体间有着复杂语义关系的特点,而多源分布的地质图数据在实际应用中又需要统一管理,协调工作,这就提出了数据交换的要求。传统的数据库复制方案无法满足地质实体级的数据交换,本文提出了一种以地质空间要素类为交换单位的增量同步的数据交换设计方案,详细阐述了其关键的数据交换原理,数据传输方案以及上下级服务器之间的数据同步策略,该方案现已用于国家地质图空间数据库管理系统,被认为是一种行之有效的方案。
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| 关 键 词： | 地质图空间数据库 分布式 数据交换 同步更新 |
| 文章编号： | 1009-2307（2007）03-0151-03 |
| 修稿时间： | 2006-05-23 |
Design and realization of data exchange system based on the distributed geological map spatial database |
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| YANG Lin,ZHOU Shun-ping,WAN Bo.Design and realization of data exchange system based on the distributed geological map spatial database[J].Science of Surveying and Mapping,2007,32(3):151-152,116. |
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| Authors: | YANG Lin ZHOU Shun-ping WAN Bo |
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| Abstract: | Distributed geological spatial database has three characteristics: distributed data, heterogeneous data source and complex semantic relationship of geological entities. In practical application the geological data need to be managed as a whole system, then the data exchange is brought forward. Traditional methods of database copy cannot satisfy the requirements of data exchange for geological entities. In this paper, a strategy is put forward regarding geological spatial feature class as the basic transform unit. Several problems are discussed such as the key principle of the design, the method of data transformation and the strategy of synchronous updating between superior and inferior database servers. The strategy has been used in the distributed geological spatial database and is considered as an effective method. |
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| Keywords: | geological map spatial database distributed database data exchange synchronous updating |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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