Research Of Temporal Cadastral Database Construction Based On Oracle Spatial

Cadastral Databases is a database which stores and manages cadastral information. From naissance to now, cadastral database has already entered into a diversified application stage. It has changed form simplex attribute data management to the management that temporal information combines with graphic data. The integration storage and management of temporal information, spatial information and attribute information is the difficulty in existing cadastral database.Firstly this thesis makes a study of Oracle Spatial, including the classification of spatial data, the two models of Oracle Spatial, the index of spatial data etc. The object model—SDO_GEOMETRY which stores spatial data is studied, including specific meaning of each part., metadata which stores geometry information, function of each part. On this basis, several representative geometric body are stored using SDO_GEOMETRY object type.Then, spatial data is imported after studying Oracle Spatial. The thesis chooses EasyLoader as data importing tool. The MapInfo format map data are imported into Oracle database using EasyLoader.Finally, the construction of temporal cadastral database based on Oracle Spatial is completed which takes MapX as development platform, the JINNIU District of Chengdu as the research object. The integration management of temporal information and spatial information, real-time analysis of land parcel are realized.