Oracle® Database Heterogeneous Connectivity Administrator's Guide 10g Release 1 (10.1) Part Number B10764-01 |
|
|
View PDF |
This manual describes Oracle's approach for information integration in a heterogeneous environment. Specifically, it describes Oracle Transparent Gateways and Generic Connectivity and is meant to be an administrator's guide for these Oracle products.
This preface contains these topics:
Oracle Database Heterogeneous Connectivity Administrator's Guide is intended for the following users:
To use this document, you should be familiar with the following information:
This document contains:
This chapter describes the challenges of operating in a heterogeneous environment. Oracle recognizes these challenges and offers both synchronous and asynchronous solutions that enable companies to easily operate in such an environment. The two synchronous solutions, Oracle Transparent Gateways and Generic Connectivity, are discussed this book.
Oracle's synchronous solutions for operating in a heterogeneous environment are Oracle Transparent Gateways and Generic Connectivity. The common component of the Oracle database server for supporting these solutions is Heterogeneous Services. This chapter describes the architecture and functionality of the Heterogeneous Services component and its interaction with Oracle Transparent Gateways and Generic Connectivity.
This chapter describes the major features provided by Oracle Transparent Gateways and Generic Connectivity.
This chapter explains how to use Heterogeneous Services agents.
This chapter explains what multithreaded agents are, how they contribute to the overall efficiency of a distributed database system, and how to administer multithreaded agents.
This chapter explains how to optimize distributed SQL statements, how to use partition views with Oracle Transparent Gateways, and how to optimize the performance of distributed queries.
This chapter describes the configuration and usage of generic connectivity agents.
This appendix lists heterogeneous services initialization parameters and provides instructions on how to set them.
The tables in this appendix show how Oracle maps ANSI datatypes through ODBC and OLE DB interfaces to supported Oracle datatypes when it is retrieving data from a non-Oracle system.
This appendix documents data dictionary translation support. It explains how to access non-Oracle data dictionaries, lists heterogeneous services data dictionary views, describes how to use supported views and tables, and explains data dictionary mapping.
For more information, see these Oracle resources:
Many of the examples in this book use the sample schemas of the seed database, which is installed by default when you install Oracle. 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 (OTN). You must register online before using OTN; registration is free and can be done at
http://otn.oracle.com/membership/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://otn.oracle.com/documentation/index.html
This section describes the conventions used in the text and code examples of this documentation set. It describes:
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.
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.
The following table describes conventions for Windows operating systems and provides examples of their use.
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 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
http://www.oracle.com/accessibility/
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.
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.