Single instance

Oracle 19c Database Release Update Revision 19.4.1.0.0

Apply Patching On Oracle 19c Database Release Update 19.5.0.0.0

Deinstallation Release Update Patch on oracle 19c (Patch 29834717)

Apply Patching On Oracle 19c Database Release Update 19.4.0.0.0

Patching Oracle Database Release Updates Revision (RUR) 18.3.2.0.0 to 18.4.1.0.0

Patching Oracle Database Release Updates Revision (RUR) 18.3.0.0.0 to 18.3.2.0.0

Step-by-Step Applying PSU Patch in Oracle 12c For Single-Instance