The Spatial PL/SQL application programming interface (API) includes several operators and many procedures and functions. Spatial Operators, Procedures, and Functions.The spatial relationship is based on geometry locations. Spatial uses secondary filters to determine the spatial relationship between entities in the database. The integration of spatial indexing capabilities into the Oracle Database engine is a key feature of the Spatial product. Spatial uses a two-tier query model to resolve spatial queries and spatial joins. Layers are composed of geometries, which in turn are made up of elements. The spatial data model in Oracle Spatial is a hierarchical structure consisting of elements, geometries, and layers. Once spatial data is stored in an Oracle database, it can be easily manipulated, retrieved, and related to all other data stored in the database.Ī geometry is an ordered sequence of vertices that are connected by straight line segments or circular arcs. Oracle Spatial is designed to make spatial data management easier and more natural to users of location-enabled applications and geographic information system (GIS) applications. This model stores an entire geometry in the Oracle native spatial data type for vector data, SDO_GEOMETRY. Oracle Spatial supports the object-relational model for representing geometries. Oracle Spatial, often referred to as Spatial, includes advanced features for spatial data and analysis and for physical, logical, network, and social applications.
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