Oracle Spatial User's Guide and Reference - InfoLab

Spatial Analysis and Mining
Geocoding
xxxii
You can use new spatial analysis and mining subprograms in Oracle Data Mining
(ODM) applications. See Chapter 8 for conceptual and usage information, and
Chapter 21 for reference information about each subprogram.
The geocoding capabilities of Oracle Spatial let you geocode unformatted addresses.
See Chapter 5 for conceptual and usage information, and Chapter 20 for reference
information about each subprogram.
Quadtree Indexing Discouraged; R-Tree Indexing Encouraged
The use of spatial quadtree indexes is discouraged. You are strongly encouraged to
use R-tree indexing for spatial indexes, unless you need to continue using quadtree
indexes for special situations. Significant performance improvements have been
made to spatial R-tree indexing for this release.
Almost all information about quadtree indexing has been removed from this guide
and placed in a separate guide, Oracle Spatial Quadtree Indexing, which is available
only through the Oracle Technology Network.
For information about spatial indexing, see Section 1.7 and Chapter 4.
New Utility Subprograms
The SDO_UTIL package contains the following new subprograms:
■ SDO_UTIL.APPEND appends one geometry to another geometry to create a
new geometry
■ SDO_UTIL.CONCAT_LINES concatenates two line or multiline
two-dimensional geometries to create a new geometry.
■ SDO_UTIL.CONVERT_UNIT converts values from one angle, area, or distance
unit of measure to another.
■ SDO_UTIL.CIRCLE_POLYGON returns the polygon geometry that
approximates and is covered by a specified circle.
■ SDO_UTIL.ELLIPSE_POLYGON returns the polygon geometry that
approximates and is covered by a specified ellipse.