Preparing to upgrade

Preparing to upgrade Upgrading your database occurs the first time the new software connects to the old database. upgrading Derbyprerequisites

Before you connect to the database using the new software:

Back up your database to a safe location using online/offline backup procedures.For more information on backup, see the . Update your CLASSPATH or modulepath with the latest jar files. Make sure that there are no older versions of the jar files in your CLASSPATH or modulepath. You can determine if you have multiple versions of in your CLASSPATH or modulepath by using the sysinfo tool. To use the sysinfo tool, execute the following command:java org.apache.derby.tools.sysinfoThe sysinfo tool uses information found in the jar files to determine the version of any jar in your CLASSPATH or modulepath. Be sure that you have only one version of the jar files specified there.