Oracle Spatial, an option for Oracle Database 10g Enterprise Edition, includes advanced spatial capabilities to support GIS applications, location-based services, and enterprise spatial information systems. Oracle Spatial extends the core location features included in every Oracle database with Oracle Locator. 1 Its advanced data manipulation and spatial analysis features include buffer generation, spatial aggregates, area and length calculations, and linear referencing. The first release of Oracle Spatial 10g introduced a GeoRaster datatype to store and manage image and gridded raster data and metadata, network and topology data models, geocoding and routing engines, and spatial analysis and mining functions. These significant new capabilities address business-critical requirements of the public sector, defense, logistics, energy exploration, business geographics, and life sciences domains. The second release of Oracle Spatial 10g introduces eLocation Quick Start, a set of Java APIs for quick and easy deployment of mapping, geocoding, and routing services, and enhances features introduced in the first release. Combined with the performance, scalability, and security of Oracle Database 10g, Oracle Spatial 10g is the most advanced spatial database platform available for enterprise class deployments. In general, this white paper describes those features included only with Oracle Spatial, but does not cover Oracle Locator features in depth.