Replication is the process of copying and maintaining data across the different databases in a distributed system. The goal of this chapter is to present a few methods for replicating geometry data. Some of the traditional Oracle replication technologies do not directly support replication of tables with SDO_GEOMETRY
data. The examples given here show alternative ways of replicating tables with the geometry data. Replication does not always mean replicating the same data in different databases. In some cases, it also means copying the data from one database into a different database in a different form, for example, data in
Online Transaction Processing (OLTP) databases can be converted to Online Analytical Processing (OLAP) databases by replicating or combining data from different OLTP tables into a single table in the OLAP system. We will show how to do this conversion of data from a transactional OLTP database to a publication or OLAP database. Starting...

Applying and Extending Oracle Spatial
By :

Applying and Extending Oracle Spatial
By:
Overview of this book
Spatial applications should be developed in the same way that users develop other database applications: by starting with an integrated data model in which the SDO_GEOMETRY objects are just another attribute describing entities and by using as many of the database features as possible for managing the data. If a task can be done using a database feature like replication, then it should be done using the standard replication technology instead of inventing a new procedure for replicating spatial data. Sometimes solving a business problem using a PL/SQL function can be more powerful, accessible, and easier to use than trying to use external software. Because Oracle Spatial's offerings are standards compliant, this book shows you how Oracle Spatial technology can be used to build cross-vendor database solutions. Applying and Extending Oracle Spatial shows you the clever things that can be done not just with Oracle Spatial on its own, but in combination with other database technologies. This is a great resource book that will convince you to purchase other Oracle technology books on non-spatial specialist technologies because you will finally see that "spatial is not special: it is a small, fun, and clever part of a much larger whole".
Table of Contents (20 chapters)
Applying and Extending Oracle Spatial
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Defining a Data Model for Spatial Data Storage
Importing and Exporting Spatial Data
Using Database Features in Spatial Applications
Replicating Geometries
Partitioning of Data Using Spatial Keys
Implementing New Functions
Editing, Transforming, and Constructing Geometries
Using and Imitating Linear Referencing Functions
Raster Analysis with GeoRaster
Integrating Java Technologies with Oracle Spatial
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
Customer Reviews