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Oracle® XML DB Developer's Guide
11g Release 2 (11.2)
Part Number E23094-02
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Preface

This manual describes Oracle XML DB, and how you can use it to store, generate, manipulate, manage, and query XML data in the database.

After introducing you to the heart of Oracle XML DB, namely the XMLType framework and Oracle XML DB Repository, the manual provides a brief introduction to design criteria to consider when planning your Oracle XML DB application. It provides examples of how and where you can use Oracle XML DB.

The manual then describes ways you can store and retrieve XML data using Oracle XML DB, APIs for manipulating XMLType data, and ways you can view, generate, transform, and search on existing XML data. The remainder of the manual discusses how to use Oracle XML DB Repository, including versioning and security, how to access and manipulate repository resources using protocols, SQL, PL/SQL, or Java, and how to manage your Oracle XML DB application using Oracle Enterprise Manager. It also introduces you to XML messaging and Oracle Streams Advanced Queuing XMLType support.

This Preface contains these topics:

Audience

Oracle XML DB Developer's Guide is intended for developers building XML Oracle Database applications.

An understanding of XML, XML Schema, XQuery, XPath, and XSL is helpful when using this manual.

Many examples provided here are in SQL, PL/SQL, Java, or C. A working knowledge of one of these languages is presumed.

Documentation Accessibility

For information about Oracle's commitment to accessibility, visit the Oracle Accessibility Program website at http://www.oracle.com/pls/topic/lookup?ctx=acc&id=docacc.

Access to Oracle Support

Oracle customers have access to electronic support through My Oracle Support. For information, visit http://www.oracle.com/pls/topic/lookup?ctx=acc&id=info or visit http://www.oracle.com/pls/topic/lookup?ctx=acc&id=trs if you are hearing impaired.

Related Documents

For more information, see these Oracle resources:

Many of the examples in this book use the sample schemas, which are installed by default when you select the Basic Installation option with an Oracle Database installation. Refer to Oracle Database Sample Schemas for information about how these schemas were created and how you can use them yourself.

To download free release notes, installation documentation, white papers, or other collateral, please visit the Oracle Technology Network (OTN). You must register online before using OTN; registration is free and can be done at

http://www.oracle.com/technetwork/community/join/overview/index.html

If you already have a username and password for OTN, then you can go directly to the documentation section of the OTN Web site at

http://www.oracle.com/technetwork/indexes/documentation/

For additional information, see:

Note:

Throughout this manual, "XML Schema" refers to the XML Schema 1.0 recommendation, http://www.w3.org/XML/Schema.

Conventions

The following text conventions are used in this document:

Convention Meaning
boldface Boldface type indicates graphical user interface elements associated with an action, or terms defined in text or the glossary.
italic Italic type indicates book titles, emphasis, or placeholder variables for which you supply particular values.
monospace Monospace type indicates commands within a paragraph, URLs, code in examples, text that appears on the screen, or text that you enter.

Code Examples

The code examples in this book are for illustration only. In many cases, however, you can copy and paste parts of examples and run them in your environment.

Standard Database Schemas

Many of the examples in this book use the standard database schemas that are included in your database. In particular, database schema OE contains XML purchase-order documents in XMLType table purchaseorder, and XML documents with warehouse information in XMLType column warehouse_spec of table warehouses.

The purchase-order documents are also contained in Oracle XML DB Repository, under the repository path /home/OE/PurchaseOrders/2002/. The XML schema that governs these documents is file purchaseorder.xsd, at repository location /home/OE/purchaseorder.xsd. An XSL style sheet that is used in some examples to transform purchase-order documents is file purchaseorder.xsl, at repository location /home/OE/purchaseorder.xsl. This XML schema and style sheet can also be found in Appendix A, "Oracle-Supplied XML Schemas and Examples".

See Also:

Pretty Printing of XML Data

To promote readability, especially of lengthy or complex XML data, output is sometimes shown pretty-printed (formatted) in code examples.

Execution Plans

Some of the code examples in this book present execution plans. These are for illustration only. Running examples that are presented here in your environment is likely to result in different execution plans from those presented here.

Reminder About Case Sensitivity

When examining the examples in this book, keep in mind the following:

For example, if you create a table named my_table in SQL without using double-quotes, then you must refer to it in XML code as "MY_TABLE".

Syntax Descriptions

Syntax descriptions are provided in this book for various SQL, PL/SQL, or other command-line constructs in graphic form or Backus Naur Form (BNF). See Oracle Database SQL Language Reference for information about how to interpret these descriptions.

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