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This is what you call a side-by-side upgrade. There is less risk and the ability to instantly fall back. While it is rare that the SQL Server in-place upgrade process fails, if it does the fall back usually requires a full restore of the server the database is running on AND a restore of the databases themselves. This can be stressful and time consuming, with some serious downtime. Even if everything goes well, there will still be downtime during the upgrade.
Oracle8 Server The Oracle Server must be shut down prior to being upgraded. Oracle Parallel Server When upgrading an Oracle Parallel Server, follow the instructions in this chapter to upgrade the initial node first.
Prepare the Migration Utility Perform this task only when migrating the database using the Migration utility. Select the Install Migration Utility option from the Migration screen. Note: Ignore the message to run the root. If you do not already have a list of installed Oracle7 products, use the Installed Products window of the Software Asset Manager to make one. The list is useful later in the migration. Exit the Installer. Upgrading Perform the following tasks to upgrade the Oracle Server.
Select the products you want to install at the Software Asset Manager screen. Select the Install button to begin the installation. Answer the remaining Installer prompts. Exit the Installer when the software upgrade is complete. Update Parameter Files Modify the Oracle Server parameter files to reflect the new location of the Oracle software, relative to existing database files.
Copy the init sid. If you are changing the name of the database, rename the init sid. In the init sid. If the init sid. Locate the include file and copy it to the same directory as the init sid. Update the include file entry to point to the new version of the file, making sure the entry is an absolute pathname, not a relative one.
Remember that you set these for the new Oracle8 installation before you performed the software upgrade. Be sure that you know the locations of the control files and init sid.
Start the Installer provided with the new distribution. Select the Run Migration Utility option at the Migration screen. Do you want to be prompted for all command options? Spool output? Space-check only? Changing database name? Indicate if you are changing the name of the database during the migration. Change character set? Skip space checking? Information The Installer displays the full command it will use to invoke the Migration utility. Last chance Information The Installer reports whether the Migration utility has completed successfully.
Rename or remove control files. Run the root. Complete the Migration Perform the following steps to complete migrating the Oracle7 database to Oracle8 See Also: Oracle8 Migration describes the Migration utility and its command options in detail. Move the conversion file conv sid. If the Oracle8 sid is different from the Oracle7 sid , rename the conversion file appropriately.
Do not alter the conversion file in any other way. Import the Exported Files Use the Import utility provided with the target database to import the files you previously exported. Upgrade Product Database Objects Some Oracle products use the database to store and manipulate information: Oracle ConText Option, for instance, stores its dictionary in a database table.
When Not to Upgrade Product Database Objects As a rule, product database objects do not need to be upgraded during a minor upgrade: between release 2. Start the Installer provided with the new Oracle8 release. Select the products for which you want to upgrade database objects at the Software Asset Manager screen and select the Install button.
Select the version of the database you are upgrading at the DB Upgrade screen. At the Database Action screen: If the product was not part of the old release and you are installing it for the first time, select the Create Product DB Objects option.
Relocate Database Files to an OFA-Compliant Structure This task is not required, but it is recommended for simplifying future maintenance and upgrades.
Start Server Manager and execute the following SQL commands to generate a list of database and log files, and write the filenames to a file file. Back up the upgraded database. The backup made during upgrade preparation is acceptable, as long as the database has not been opened since that backup was taken.
Copy the data files and log files to their new locations. Specify the new file locations using complete, absolute pathnames. You should also record the full pathnames of the new files for future reference. Check file. Verify that all the database files and log files have the new names you specified. When you are certain the database files are successfully relocated and the init sid. Perform any post-installation tasks not completed during the software upgrade portion of the upgrade such as completing installation of online documentation.
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