Land resource management need to gain the cadastre data from the distributed and heterogeneousdatabase.
从分布异构的地籍数据库提取数据,实现国家地籍数据总归户。
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Then the security information management model in the SKJ2004 project is taken as an example to describe the implementation process of heterogeneous distributed database systems based on CORBA.
The information integration for the NPP heterogeneous environment is implemented by the use of technologies of database and product data management (PDM).