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Oracle9i Support for JavaServer Pages Reference
Release 2 (9.2)

Part Number A96657-01
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This document introduces and explains the Oracle implementation of JavaServer Pages (JSP) technology, specified by Sun Microsystems. It summarizes standard features, as specified by Sun, but focuses primarily on Oracle implementation details and value-added features.

The Oracle JSP container provided with Oracle9i release 2 is a complete implementation of the Sun Microsystems JavaServer Pages Specification, Version 1.1.

This preface contains these topics:

Intended Audience

This document is intended for developers interested in creating Web applications based on JavaServer Pages technology. It assumes that working Web and servlet environments already exist, and that readers are already familiar with the following:

While some information about standard JSP 1.1 technology and syntax is provided in Chapter 1 and elsewhere, there is no attempt at completeness in this area. For additional information about standard JSP 1.1 features, consult the Sun Microsystems JavaServer Pages Specification, Version 1.1 or other appropriate reference materials.

The JSP 1.1 specification relies on a servlet 2.2 environment, and servlet 2.2 features are discussed in this document. However, the JSP container provided with Oracle9i has special features for earlier servlet environments, and there is special discussion of these features in Chapter 9 as they relate to servlet 2.0 environments, particularly Apache JServ, which is also included with Oracle9i.

Documentation Accessibility

Our goal is to make Oracle products, services, and supporting documentation accessible, with good usability, to the disabled community. To that end, our documentation includes features that make information available to users of assistive technology. This documentation is available in HTML format, and contains markup to facilitate access by the disabled community. Standards will continue to evolve over time, and Oracle Corporation is actively engaged with other market-leading technology vendors to address technical obstacles so that our documentation can be accessible to all of our customers. For additional information, visit the Oracle Accessibility Program Web site at

Accessibility of Code Examples in Documentation

JAWS, a Windows screen reader, may not always correctly read the code examples in this document. The conventions for writing code require that closing braces should appear on an otherwise empty line; however, JAWS may not always read a line of text that consists solely of a bracket or brace.

Accessibility of Links to External Web Sites in Documentation

This documentation may contain links to Web sites of other companies or organizations that Oracle Corporation does not own or control. Oracle Corporation neither evaluates nor makes any representations regarding the accessibility of these Web sites.


This document contains:

Chapter 1, "General Overview"

This chapter highlights standard JSP 1.1 technology. (It is not intended as a complete reference.)

Chapter 2, "Overview of the Oracle JSP Implementation"

This chapter summarizes Oracle JSP features and extensions, and introduces the JSP and servlet containers and the Web server provided with Oracle9i release 2.

Chapter 3, "Basics"

This chapter introduces basic JSP programming considerations and provides a starter sample for database access.

Chapter 4, "Key Considerations"

This chapter discusses a variety of general programming and configuration issues the developer should be aware of.

Chapter 5, "Oracle-Specific Programming Extensions"

This chapter covers Oracle-specific (non-portable) extensions supplied by the Oracle JSP container with Oracle9i release 2.

Chapter 6, "JSP Translation and Deployment"

This chapter covers Oracle JSP translation and deployment features and issues, and documents the ojspc pre-translation tool.

Chapter 7, "JSP Tag Libraries"

This chapter introduces the basic JSP 1.1 framework for custom tag libraries.

Chapter 8, "Oracle JSP Globalization Support"

This chapter discusses standard and Oracle-specific features for globalization support.

Chapter 9, "Oracle JSP in Apache JServ"

This appendix provides details of how to use the Oracle JSP container in the JServ servlet 2.0 environment, including required files, deployment, configuration, and special programming considerations.

Appendix A, "Getting Started in Alternative Environments"

This appendix covers configuration steps for alternative environments--Tomcat, from the Apache Software Foundation, and the Sun Microsystems JSWDK.

Appendix B, "Third Party Licenses"

This appendix includes the Third Party License for third party products included with Oracle9i release 2 and discussed in this document.

Related Documentation

Also available from the Oracle Java Platform group, for Oracle9i releases:

The following OC4J documents, for Oracle9i Application Server releases, are also available from the Oracle Java Platform group:

The following documents are from the Oracle Server Technologies group:

The following documents from the Oracle9i Application Server group may also be of some interest:

The following are available from the Oracle9i JDeveloper group:

In North America, printed documentation is available for sale in the Oracle Store at

Customers in Europe, the Middle East, and Africa (EMEA) can purchase documentation from

Other customers can contact their Oracle representative to purchase printed documentation.

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

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

To access the database documentation search engine directly, please visit

The following Oracle Technology Network (OTN) resources are available for further information about JavaServer Pages:

The following resources are available from Sun Microsystems:


This section describes the conventions used in the text and code examples of this documentation set. It describes:

Conventions in Text

We use various conventions in text to help you more quickly identify special terms. The following table describes those conventions and provides examples of their use.

Convention Meaning Example


Italic typeface indicates book titles or emphasis, or terms that are defined in the text.

Oracle9i Database Concepts

Ensure that the recovery catalog and target database do not reside on the same disk.

UPPERCASE monospace (fixed-width) font

Uppercase monospace typeface indicates elements supplied by the system. Such elements include parameters, privileges, datatypes, RMAN keywords, SQL keywords, SQL*Plus or utility commands, packages and methods, as well as system-supplied column names, database objects and structures, usernames, and roles.

You can specify this clause only for a NUMBER column.

You can back up the database by using the BACKUP command.

Query the TABLE_NAME column in the USER_TABLES data dictionary view.


lowercase monospace (fixed-width) font

Lowercase monospace typeface indicates executables, filenames, directory names, and sample user-supplied elements. Such elements include computer and database names, net service names, and connect identifiers, as well as user-supplied database objects and structures, column names, packages and classes, usernames and roles, program units, and parameter values.

Note: Some programmatic elements use a mixture of UPPERCASE and lowercase. Enter these elements as shown.

Enter sqlplus to open SQL*Plus.

The password is specified in the orapwd file.

Back up the data files and control files in the /disk1/oracle/dbs directory.

The department_id, department_name, and location_id columns are in the hr.departments table.

Set the QUERY_REWRITE_ENABLED initialization parameter to true.

Connect as oe user.

The JRepUtil class implements these methods.

lowercase italic monospace (fixed-width) font

Lowercase italic monospace font represents place holders or variables.

You can specify the parallel_clause.

Run old_release.SQL where old_release refers to the release you installed prior to upgrading.

Conventions in Code Examples

Code examples illustrate SQL, PL/SQL, SQL*Plus, or other command-line statements. They are displayed in a monospace (fixed-width) font and separated from normal text as shown in this example:

SELECT username FROM dba_users WHERE username = 'MIGRATE';

The following table describes typographic conventions used in code examples and provides examples of their use.

Convention Meaning Example

[ ]

Brackets enclose one or more optional items. Do not enter the brackets.

DECIMAL (digits [ , precision ])


A vertical bar represents a choice of two or more options within brackets or braces. Enter one of the options. Do not enter the vertical bar.




Horizontal ellipsis points indicate either:

  • That we have omitted parts of the code that are not directly related to the example
  • That you can repeat a portion of the code

CREATE TABLE ... AS subquery;

SELECT col1, col2, ... , coln FROM employees;

Other notation

You must enter symbols other than brackets, braces, vertical bars, and ellipsis points as shown.

acctbal NUMBER(11,2);

acct CONSTANT NUMBER(4) := 3;


Italicized text indicates place holders or variables for which you must supply particular values.

CONNECT SYSTEM/system_password

DB_NAME = database_name


Uppercase typeface indicates elements supplied by the system. We show these terms in uppercase in order to distinguish them from terms you define. Unless terms appear in brackets, enter them in the order and with the spelling shown. However, because these terms are not case sensitive, you can enter them in lowercase.

SELECT last_name, employee_id FROM employees;


DROP TABLE hr.employees;


Lowercase typeface indicates programmatic elements that you supply. For example, lowercase indicates names of tables, columns, or files.

Note: Some programmatic elements use a mixture of UPPERCASE and lowercase. Enter these elements as shown.

SELECT last_name, employee_id FROM employees;

sqlplus hr/hr


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