| A Method of implement spatial database manage system is introduced in this paper. And it gives an interoperable distributed spatial database manage system model: 5DB. SDB conforms to the OpenGIS specification for interoperability, supports data share and service share, and provides access to a full range of geodata types. Some useful strategies are provided in the SDB system to get higher performance, such as multi-thread server model, multi-layer database access interface model.
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