Geodatabase复制技术在国土资源管理中的应用

当前各地国土部门建立并投入使用的GIS数据库,大多采用独立、分散的数据库管理模式。该模式的缺陷在于:上下级数据库完全独立运行,无法实施有效的数据同步;导致数据库投入使用时间越长,上下级间的数据差异越大。传统的数据同步方式因功能限制而无法满足GIS数据同步的需求。Geodatabase双向复制能够在不同数据库平台多个地理数据库间实现数据双向同步,可以很好地解决上述问题。基于阳新县土地利用数据库建立分布式地理数据库,利用Geodatabase复制技术实现了同一数据库平台下多个地理数据库间的数据双向同步。

Application of Geodatabase Replication on Land and Resources Management

At present,these GIS databases built by Land Resource departments in many places,almost adopt stand-alone,distributed mode of database management.The drawback in this model is completely independent on upper and lower database unable to implement effective data synchronization,which causes that the longer the databases use the greater difference between them.The traditional way of data synchronization cannot fulfill the demand for GIS data synchronization because of functional limitation.However,Geodatabase two-way replication could solve this problem through two-way synchronization in different database platforms in multiple geographic databases.Based on Yangxin county land use database,we built distributed geographic databases,using Geodatabase replication technology to achieve the twoway data synchronization between multiple geographic databases in same database platform.