A new spatial database based on region and object data model is designed. The database could dispose many data sources. It provides application interfaces and has some flexibility.
设计了一种基于区域和基于对象数据模型的新型空间数据库，该数据库具有处理多种数据源的能力，提供应用接口，具有较高的灵活性。
Plus, you would have to write additional code in the middle tier to map the relational data to an Object data Model or an XML data Model.
另外，必须在中间层中编写更多代码，将关系数据映射到对象数据模型或XML数据模型。
Plus, you would have to write additional code in the middle tier to map the relational data to an Object data Model or an XML data Model.
另外，必须在中间层中编写更多代码，将关系数据映射到对象数据模型或XML数据模型。
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