Analysis of information sources in references of the Wikipedia article "Oracle Spatial and Graph" in English language version.
Oracle Spatial mainly consists of the following: [...] A schema (MDSYS derived from Multi-Dimensional System) that defines the storage, syntax, and semantics of the supported geometric (both vector and raster) data types [...]
A subset of the Oracle Spatial functionality, called Oracle Locator, is available for the Standard edition of the Oracle database. Oracle Locator does not support common operations such as unions and buffers, intersections, area and length calculations. It also excludes support for more advanced features such as linear referencing systems, spatial analysis functions, geocoding, and raster format data.
Spatial consists of the following: [...] A schema (MDSYS) that prescribes the storage, syntax, and semantics of supported geometric datatypes [...]