Preparing to upgrade
Upgrading your database occurs the first time the new Derby software
connects to the old database.
Before you connect to the database using the new software:
- Back up your database to a safe location using Derby online/offline
backup procedures. For more information on backup, see the Java DB Server and Administration Guide.
- Update your CLASSPATH with the latest jar files.
- Make sure that there are no older versions of the Derby jar
files in your CLASSPATH. You can determine if you have multiple versions of Derby in your CLASSPATH by using the sysinfo tool.
To use the sysinfo tool,
execute the following command:
The sysinfo tool
uses information found in the Derby jar
files to determine the version of any Derby jar in your CLASSPATH. Be sure that you have only one version of
the Derby jar files specified
in your CLASSPATH.