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Applying and Extending Oracle Spatial

You're reading from  Applying and Extending Oracle Spatial

Product type Book
Published in Sep 2013
Publisher Packt
ISBN-13 9781849686365
Pages 568 pages
Edition 1st Edition
Languages

Table of Contents (20) Chapters

Applying and Extending Oracle Spatial
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Defining a Data Model for Spatial Data Storage 2. Importing and Exporting Spatial Data 3. Using Database Features in Spatial Applications 4. Replicating Geometries 5. Partitioning of Data Using Spatial Keys 6. Implementing New Functions 7. Editing, Transforming, and Constructing Geometries 8. Using and Imitating Linear Referencing Functions 9. Raster Analysis with GeoRaster 10. Integrating Java Technologies with Oracle Spatial 11. SQL/MM – A Basis for Cross-platform, Inter-operable, and Reusable SQL Table Comparing Simple Feature Access/SQL and SQL/MM–Spatial
Use of TREAT and IS OF TYPE with ST_GEOMETRY Index

Partitioning of spatial tables


Spatial tables can be partitioned using any of the previously described methods. However, spatial indexing imposes some restrictions on the type of partitioning used for the spatial tables. When a table is partitioned, the index on the table can be created as global or local. A global index treats the table as a non-partitioned table and creates one large index to cover all the rows of the table. A local index is partitioned the same way as the table and each partition of the table will have one index.

Oracle Spatial only supports the range-based partitioning approach for spatial indexes; that is, an Oracle Spatial table can be partitioned using any of the methods, but if a partitioned (or local) spatial index is required, then only the range-based partitioning must be used. Due to this restriction, the rest of the discussion in this chapter will focus on the range-based partitioning.

Partitioning spatial indexes

A range-partitioned table must have a column that...

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