Especially since relational database products come out, people pay close attention to the issue of data interoperation and data sharing.
尤其是关系型数据库产品问世以来，异构数据库之间实现互操作及数据共享的问题就一直被人们所关注。
At present, the modes of the integration of multi-source spatial data are data format exchange, data interoperation, and directly data access.
目前多源空间数据集成的模式有数据格式转换、数据互操作和直接数据访问。
At present, the modes of the integration of multi-source spatial data are data format exchange, data interoperation, and directly data access.
目前多源空间数据集成的模式有数据格式转换、数据互操作和直接数据访问。
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