Oracle Database 11g: XML Development Student Guide

Oracle Database 11g introduces a new storage model for XMLType. This new model, known as
binary XML, is in addition to the existing CLOB and object relational storage options. The binary
XML format is the new option for storing and manipulating XML data within the database. This
format is also used for transferring XML documents to and from clients and application tiers.
The binary XML:

• Is a binary serialization of XML infoset
• Is XML-schema aware, but it can also be used with XML data that is not based on an XML
• schema
• Is a post-parse persistence model
• Is data type aware and takes advantage of the native database data types
• Does not require data conversion during database insertion or retrieval
• Serves as an efficient XML exchange medium
• Supports backward compatible XML schema evolution. Backward compatible schema evolutions are those that do not require any changes to existing instance data.

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