Abstract
Spatial database is a spatial information infrastructure,and the efficiency and quality of its construction determine the success or failure of the geo- information project. Currently,the spatial database is mostly associated with a specific GIS platform. The database construction process is complex,inefficient and lack of versatility. In order to adapt the database construction to complex variability,the authors,through an analysis of the structural expression of the spatial database data model,studied and put forward the method for storing data model by using data dictionary and the technology for automatic construction of a spatial database. Practice of quite a few projects has proved that the method can significantly reduce the complexity of building a database and improve efficiency, together with certain extent of versatility.
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