The Design and Implementation of Spatial Database for Digital City

Spatial Database is the core technique platform of digital city data infrastructure. This paper discusses the characteristic of spatial database for digital city, and figures out it's function should be data share and interopefability.It mainly consists of metadata database, remote sensing image database, electron vector map database, GPS database, Geocoding database and unit database. At last we design and implement Spatial Database based J2EE and Oracle Spatial for digital city. The main technique includes JPEG2000 compress arithmetic based Jasper and JJ2000 source code, and data update schema.