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Applying and Extending Oracle Spatial by Siva Ravada, Simon Gerard Greener

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Chapter 6. Implementing New Functions

To create new functions that use and extend those offered by Oracle's Spatial and Locator products, the SDO_GEOMETRY object, its attributes and its structure must be thoroughly understood. Therefore this chapter will start by building some functions that will help you understand, access, and process an SDO_GEOMETRY object's attributes. In building these functions, those Oracle SDO_GEOMETRY methods and SDO_GEOM and SDO_UTIL package functions that relate to the processing of the SDO_GEOMETRY attributes and structure, will be introduced and used. This chapter will present information that will help the reader understand how to:

  • Expose or create additional properties for the SDO_GEOMETRY object
  • Manipulate the

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