Oracle9i Database Migration Release 1 (9.0.1) Part Number A90191-02 |
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This manual guides you through the process of planning and executing migrations, upgrades, and downgrades on the Oracle database system. In addition, this manual provides information about compatibility, about upgrading applications to the current release of Oracle, and about important changes in the current release, such as initialization parameter changes and data dictionary changes.
Oracle9i Database Migration contains information that describes the features and functionality of the Oracle9i (also known as the standard edition) and the Oracle9i Enterprise Edition products. Oracle9i and the Oracle9i Enterprise Edition have the same basic features. However, several advanced features are available only with the Enterprise Edition, and some of these are optional. For example, to use application failover, you must have the Enterprise Edition with the Oracle9i Real Application Clusters option.
See Also:
Oracle9i Database New Features for information about the differences between Oracle9i and the Oracle9i Enterprise Edition and the features and options that are available to you. |
This preface contains these topics:
Oracle9i Database Migration is intended for database administrators (DBAs), application developers, security administrators, system operators, and anyone who plans or executes migration, upgrade, or downgrade operations on Oracle databases.
To use this document, you need to be familiar with the following:
This document contains:
This chapter contains definitions for terms used throughout this manual. This chapter also provides information about running different versions and releases of Oracle on the same computer system.
This chapter summarizes migration procedures and the responsibilities of database administrators and application developers.
This chapter describes the steps to complete before migrating a database.
This chapter provides step-by-step instructions for using the Migration utility to migrate an Oracle7 database to Oracle9i.
This chapter provides step-by-step instructions for using the Oracle Data Migration Assistant to migrate an Oracle7 database to Oracle9i.
This chapter describes how to migrate a version 6 or Oracle7 database to Oracle9i using the Export and Import utilities.
This chapter provides step-by-step instructions for performing the following actions:
This chapter describes the actions to complete after migrating or upgrading the database to the new Oracle9i release.
This chapter contains information about compatibility and interoperability between different releases of Oracle, including detailed information about the COMPATIBLE
initialization parameter. This chapter also lists the Oracle9i features that require a 9.0.0 or higher compatibility level and discusses specific issues relating to compatibility and interoperability.
This chapter provides general information about upgrading Oracle7 applications and tools for use with Oracle9i.
This chapter describes modifying your Server Manager line mode scripts for use with SQL*Plus.
This chapter covers issues associated with ROWIDs in release 8.0 and higher, including specific information about migrating columns containing ROWIDs to release 8.0 and higher.
This chapter provides instructions for downgrading a database from Oracle9i to release 8.1.
This chapter provides instructions for removing incompatibilities before downgrading to release 8.1.
This chapter provides instructions for downgrading a database from Oracle9i to Oracle7 or release 8.0.
This appendix describes common migration problems and the actions required to correct these problems. In addition, this appendix lists the messages displayed by the Migration utility, and includes an explanation of each message. If the message is an error message, then this appendix discusses probable causes of the error, and suggests corrective action for the error.
This appendix lists initialization parameters that are important for migration. Specifically, this appendix describes initialization parameters that have been added, renamed, or obsoleted in version 8 and Oracle9i. In addition, this appendix describes compatibility issues relating to specific initialization parameters.
This appendix lists static data dictionary views that have been added, changed, or obsoleted in version 8 and Oracle9i. This appendix also lists static data dictionary views with added columns, dropped columns, and renamed columns. In addition, this appendix lists columns in static data dictionary views that may return NULLs in release 8.1 but did not return NULLs in release 8.0 and earlier.
This appendix lists dynamic performance views (V$ views) that have been added, changed, or obsoleted in version 8 and Oracle9i. This appendix also lists dynamic performance views with added columns and dropped columns.
This appendix lists new internal datatypes and SQL functions.
This appendix discusses considerations for migrating SQL*Net from Oracle7 to Oracle9i. This appendix also discusses considerations for upgrading SQL*Net or Oracle Net from version 8 to Oracle9i.
This appendix provides step-by-step instructions for migrating an Oracle replication system on an Oracle7 database to Oracle9i. This appendix also discusses compatibility issues between different versions of Oracle replication.
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 Oracle9i Sample Schemas for information on how these schemas were created and how you can use them yourself.
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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.
Oracle's goal is to make our products, services, and supporting documentation accessible to the disabled community with good usability. 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
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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.
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