Oracle8i Application Developer's Guide - XML Release 3 (8.1.7) Part Number A86030-01 |
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Introduction to Oracle XML, 9 of 27

## Oracle8i: Object-Relational Infrastructure

Oracle has evolved its database to an object-relational engine following the SQL:1999 standard. Oracle's object-relational engine allows you to define object types, collections of types, and references to object types.

This object-relational infrastructure provides the support for storing structured object instances in the database. XML, inherently being a structured data format, can be easily mapped to object-relational instances. This mapping will be discussed in "XML Schemas and Mapping of Documents".

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