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...with XML and adhering to W3C standards, Oracle has in the current release a strong contender in the XML-enabled database market ... and without losing the relational capabilities of the database.

Oracle9i Release 2 marks several other unique features for the Oracle database. One of these features is that you can create objects in the database without using DDL (Data Definition Language) and, consequently, without the intervention of database architects and/or administrators. With the current release an XML Schema can be used to create database objects needed to hold XML documents. The part of the Oracle database that holds the schema definition and XML documents is called the XDB. When an XML Schema is saved in the Oracle XDB and then registered with the database, the structures necessary to support XML documents that conform to that XML Schema are created in the database as relational objects. As XML documents are loaded into the database, the contents are automatically distributed among the objects in the database. They can then be retrieved with standard XPath expressions, or through PL/SQL and Java.

Another unique feature is that the loading of XML documents into the XDB has been greatly simplified. In the past, XML documents would have been loaded through Java or PL/SQL code, calling various APIs to parse, validate, and load the documents into...

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