3.1.1 General Upgrade Best Practices

Be aware of these guidelines as a best practice before you perform an upgrade.

If you have an existing Oracle Database installation, then do the following:

  • Record the version numbers, patches, and other configuration information

  • Review upgrade procedures for your existing installation

  • Review Oracle Database upgrade documentation before proceeding with installation, to decide how you want to proceed


Always create a backup of existing databases before starting any configuration change.

Refer to Oracle Database Upgrade Guide for more information about required software updates, pre-upgrade tasks, post-upgrade tasks, compatibility, and interoperability between different releases.