1. Prior to the upgrade, do the following -- https://docops.ca.com/ca-apm/10-5/en/upgrading/prepare-for-upgrade -- Prepare for upgrade.
2. Follow the steps in https://docops.ca.com/ca-apm/10-5/en/installing/apm-installation/install-apm-in-silent-mode.
-- Install APM in silent mode after making the needed response file settings as documented in https://www.ca.com/us/services-support/ca-support/ca-support-online/knowledge-base-articles.TEC1768844.html -- When using the silent install process to upgrade just the Oracle APM Database what properties need to be set in the response file?
Key part: If using silent install on a new Oracle database, update the below property to true (default is false) in the responsefile.txt.
Specifies whether you want to use an existing APM database schema on an Oracle database. Set this property to true if you want the Enterprise Manager to connect to an existing APM database. Set this property to false if you want to create new schema on a Oracle database. This property is not applicable if you are using PostgreSQL for the APM database schema.