Here I am going to illustrate the procedure to patch oracle 19c database in windows enthronement, to apply APRIL 2021 CPU patches (19.11) RU (release update). Download Windows Database Bundle Patch (19c) 19.11 from Oracle Support website. Download the latest OPatch utility: Ensure your run CMD as administrator: Check your environment variables: set PATH=%ORACLE_HOME%\perl\bin;%PATH% set … Continue reading Patching Oracle 19c Database in Windows OS