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Oracle® Ultra Search Administrator's Guide
10g Release 2 (10.2)

B14222-01
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Preface

This Preface contains these topics:

Audience

Oracle Ultra Search Administrator's Guide is intended for database administrators and application developers who perform the following tasks:

To use this document, you should have experience with the Oracle database management system, SQL, SQL*Plus, and PL/SQL.

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. Accessibility standards will continue to evolve over time, and Oracle 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 more information, visit the Oracle Accessibility Program Web site at

http://www.oracle.com/accessibility/

Accessibility of Code Examples in Documentation

Screen readers 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, some screen readers 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 does not own or control. Oracle neither evaluates nor makes any representations regarding the accessibility of these Web sites.

TTY Access to Oracle Support Services

Oracle provides dedicated Text Telephone (TTY) access to Oracle Support Services within the United States of America 24 hours a day, seven days a week. For TTY support, call 800.446.2398.

Structure

This document contains:

"What's New in Oracle Ultra Search?"

This section describes new features and provides pointers to additional information.

Chapter 1, "Introduction to Oracle Ultra Search"

This chapter provides an overview of Oracle Ultra Search and describes the system configuration.

Chapter 2, "Getting Started with Oracle Ultra Search"

This chapter provides an example scenario that shows installation and use of Oracle Ultra Search.

Chapter 4, "Installing Oracle Ultra Search"

This chapter describes how to install Oracle Ultra Search. Some information in this chapter is generic to all types of Oracle Ultra Search installations. Other information in this chapter is specific to installing and configuring Oracle Ultra Search with the Oracle Database release.

If you are installing Oracle Ultra Search with the Oracle Application Server release, then you should also read Chapter 3, "Using Oracle Ultra Search with Oracle Application Server".

Chapter 3, "Using Oracle Ultra Search with Oracle Application Server"

This chapter contains information specific to installing and configuring Oracle Ultra Search with the OracleAS release.

Chapter 5, "Oracle Ultra Search Postinstallation Information"

This chapter provides postinstallation information, such as how to configure the Oracle Database server for Oracle Ultra Search and how to manage stoplists. It also describes how to upgrade to the most recent Oracle Ultra Search release.

Chapter 6, "Security in Oracle Ultra Search"

This chapter describes the architecture and configuration of security for Oracle Ultra Search.

Chapter 7, "Understanding the Oracle Ultra Search Crawler and Data Sources"

This chapter explains how the crawler works. It also describes crawler settings, data sources, document attributes, data synchronization, and the remote crawler.

Chapter 8, "Understanding the Oracle Ultra Search Administration Tool"

This chapter describes how to use the Oracle Ultra Search administration tool to configure and schedule the Oracle Ultra Search crawler.

Chapter 9, "Oracle Ultra Search Developer's Guide and API Reference"

This chapter explains the following Oracle Ultra Search APIs: query API, crawler agent API, e-mail API, URL rewriter API, and the document service API. It also provides related details about the query applications, the query tag library, and query syntax expansion customization.

Chapter 10, "Tuning and Performance in Oracle Ultra Search"

This chapter describes various ways to tune Oracle Ultra Search and improve performance. These include tuning the Web crawling process, tuning query performance, using the remote crawler, using Oracle Ultra Search on Real Application Clusters, and table data source synchronization.

Chapter 11, "Oracle Ultra Search Administration PL/SQL APIs"

This chapter details some of Oracle Ultra Search's PL/SQL APIs for administration, including those for crawler configuration, crawler scheduling, and instance administration.

Appendix A, "Loading Metadata into Oracle Ultra Search"

This appendix describes the command-line tool for loading metadata into an Oracle Ultra Search database.

Appendix B, "Altering the Crawler Java Classpath"

This appendix explains why and how to alter the crawler Java classpath.

Appendix C, "Oracle Ultra Search Views"

This appendix shows the various views available with Oracle Ultra Search.

Appendix D, "URL Crawler Status Codes"

This appendix lists the codes that the crawler uses to indicate the result of the crawled URL.

Related Documentation

For more information, see these Oracle resources:

Many books in the documentation set use the sample schemas of the seed database, which is installed by default when you install Oracle Database. Refer to Oracle Database Sample Schemas for information on how these schemas were created and how you can use them yourself.

Printed documentation is available for sale in the Oracle Store at

http://oraclestore.oracle.com/

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

http://www.oracle.com/technology/membership/

If you already have a user name and password, then you can go directly to the documentation section at

http://www.oracle.com/technology/documentation

To access the database documentation search engine directly, visit

http://tahiti.oracle.com/

Conventions

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
Bold Bold typeface indicates terms that are defined in the text or terms that appear in a glossary, or both. When you specify this clause, you create an index-organized table.
Italics Italic typeface indicates book titles or emphasis. Oracle 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.

Use the DBMS_STATS.GENERATE_STATS procedure.

lowercase monospace (fixed-width) font Lowercase monospace typeface indicates executable programs, filenames, directory names, and sample user-supplied elements. Such elements include computer and database names, net service names and connect identifiers, 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 start SQL*Plus.

The password is specified in the orapwd file.

Back up the datafiles 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 placeholders 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
[ ]
Anything enclosed in brackets is optional.
DECIMAL (digits [ , precision ])
{ }
Braces are used for grouping items.
{ENABLE | DISABLE}
|
A vertical bar represents a choice of two options.
{ENABLE | DISABLE}
[COMPRESS | NOCOMPRESS]
...
Ellipsis points mean repetition in syntax descriptions.

In addition, ellipsis points can mean an omission in code examples or text.

CREATE TABLE ... AS subquery;

SELECT col1, col2, ... , coln FROM employees;
Other symbols You must use symbols other than brackets ([ ]), braces ({ }), vertical bars (|), and ellipsis points (...) exactly as shown.
acctbal NUMBER(11,2);
acct    CONSTANT NUMBER(4) := 3;
Italics
Italicized text indicates placeholders or variables for which you must supply particular values.
CONNECT SYSTEM/system_password
DB_NAME = database_name
UPPERCASE
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. Because these terms are not case sensitive, you can use them in either UPPERCASE or lowercase.
SELECT last_name, employee_id FROM employees;
SELECT * FROM USER_TABLES;
DROP TABLE hr.employees;
lowercase
Lowercase typeface indicates user-defined programmatic elements, such as 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
CREATE USER mjones IDENTIFIED BY ty3MU9;

Conventions for Windows Operating Systems

The following table describes conventions for Windows operating systems and provides examples of their use.

Convention Meaning Example
Choose Start > menu item How to start a program. To start the Database Configuration Assistant, choose Start > Programs > Oracle - HOME_NAME > Configuration and Migration Tools > Database Configuration Assistant.
File and directory names File and directory names are not case sensitive. The following special characters are not allowed: left angle bracket (<), right angle bracket (>), colon (:), double quotation marks ("), slash (/), pipe (|), and dash (-). The special character backslash (\) is treated as an element separator, even when it appears in quotes. If the filename begins with \\, then Windows assumes it uses the Universal Naming Convention. c:\winnt"\"system32 is the same as C:\WINNT\SYSTEM32
C:\> Represents the Windows command prompt of the current hard disk drive. The escape character in a command prompt is the caret (^). Your prompt reflects the subdirectory in which you are working. Referred to as the command prompt in this manual.
C:\oracle\oradata>
Special characters The backslash (\) special character is sometimes required as an escape character for the double quotation mark (") special character at the Windows command prompt. Parentheses and the single quotation mark (') do not require an escape character. Refer to your Windows operating system documentation for more information on escape and special characters.
C:\>exp HR/HR TABLES=employees QUERY=\"WHERE job_id='SA_REP' and salary<8000\"
HOME_NAME
Represents the Oracle home name. The home name can be up to 16 alphanumeric characters. The only special character allowed in the home name is the underscore.
C:\> net start OracleHOME_NAMETNSListener
ORACLE_HOME and ORACLE_BASE In releases prior to Oracle database version 8.1.3, when you installed Oracle components, all subdirectories were located under a top level ORACLE_HOME directory.

This release complies with Optimal Flexible Architecture (OFA) guidelines. All subdirectories are not under a top level ORACLE_HOME directory. There is a top level directory called ORACLE_BASE that by default is C:\oracle\product\10.1.0. If you install the latest Oracle release on a computer with no other Oracle software installed, then the default setting for the first Oracle home directory is C:\oracle\product\10.1.0\db_n, where n is the latest Oracle home number. The Oracle home directory is located directly under ORACLE_BASE.

All directory path examples in this guide follow OFA conventions.

Refer to Oracle Database Installation Guide for 32-Bit Windows for additional information about OFA compliances and for information about installing Oracle products in non-OFA compliant directories.

Go to the ORACLE_BASE\ORACLE_HOME\rdbms\admin directory.