MINI MINI MANI MO

Locator in Oracle 11gR2  (11.2.0.1.0 Production)
=================================================


Note: For Oracle8i, LOCATOR_WITHIN_DISTANCE was the only Locator operator
supported. For Oracle9i, LOCATOR_WITHIN_DISTANCE and SDO_WITHIN_DISTANCE
are synonyms (same signatures and behavior), and both are supported.

For information about spatial concepts, the SDO_GEOMETRY object type, and
loading and indexing spatial data, see Chapters 1 through 4 in the Oracle
Spatial User's Guide and Reference. For reference and usage information
about features supported by Locator, see the following chapters in that
manual.

 Chapter    Supported Locator Features
 Chapter 7  Geocoding
 Chapter 9  SQL statements for creating, altering, and deleting indexes
 Chapter 10 SDO_GEOMETRY object type methods
 Chapter 11 Spatial operators




Migrating from Oracle 8i Locator
===============================

There is a new geodetic computational model in 9i which adds new
functionality to Locator.
For this reason, the following procedure  is required 
for upgrading all 8i locator data (all tables with sdo_geometry columns
created and used by Locator):
(0) First migrate the install to 9i.
(i)  Identify the Spatial indexes on these tables and drop them.
(ii) Update all the data (point-ony in 8i) and add an SRID to
      the geometry. This SRID should be set to 8307.
(iii) Update the user_sdo_geom_metadata to include the SRID=8307
     for all locator related tables.
(iv) Recreate the index using the R-tree indexing method.

See the Spatial User's Guide and Reference for more details on how
to performs these steps.