7/17/2019 Readme Locator

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

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

For information about spatial concepts, the SDO_GEOMETRY object type, andloading and indexing spatial data, see Chapters 1 through 4 in the OracleSpatial User's Guide and Reference. For reference and usage informationabout features supported by Locator, see the following chapters in thatmanual.

Chapter Supported Locator FeaturesChapter 7 GeocodingChapter 9 SQL statements for creating, altering, and deleting indexesChapter 10 SDO_GEOMETRY object type methodsChapter 11 Spatial operators

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

There is a new geodetic computational model in 9i which adds newfunctionality to Locator.For this reason, the following procedure is requiredfor upgrading all 8i locator data (all tables with sdo_geometry columnscreated 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 howto performs these steps.