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Oracle Database 10g: A Beginner's Guide by Michael Corey, Michael Abbey, Ian Abramson

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CRITICAL SKILL 8.3

SQLX: Create XML from Data Stored in Oracle

For years, organizations have been pouring their data into relational databases. If you’re trading data with another organization, however, it’s likely that you’ll need to pull data out of your relational database and format that data as XML before transmitting it.

Let’s first point out that generating XML from a relational source is a not a trivial task. It involves understanding how to map relational data into a hierarchal structure. On the other hand, creating the XML once you understand the mapping you want has been made easy.

The SQL/XML Standard

Oracle Database 10g implements a number of standards-based functions enabling you to query relational data and return XML documents. ...

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