Oracle 12c Container/Pluggable database upgrade to 19c In this article, we will upgrade Oracle database Container database(CDB) and Pluggable database from 12c to 19c using Database Upgrade Assistant(DBUA). Upgrade to 19c is possible from 11.2.0.4,12.1.0.2,12.2.0.1 and 18c. Pre-Upgrade Tasks First of all you need to take the backup of your database before performing the upgrade task and make sure to check the application compatibility with the newer version of the Oracle Database. Complete the pre-upgrade steps for Oracle and ensure that your system meets the installation prerequisites. Run the 19c pre-installation package on your system to complete the all OS level pre-requisites. yum install -y oracle-database-preinstall-19c yum install -y Upgrade using DBUA Create the Oracle home directory for 19c.I am installing Oracle Database 19c on below location. cd /app mkdir -p ./oracle19c/product/19.3.0.0/db_1 cd ./oracle19c/product...
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