Check out the "Database Lifecycle Patching" Module in Oracle Support Database Accreditation Series
Check out the "Database Lifecycle Patching" Module in Oracle Support Database Accreditation Series , it can be accessed through MOS Doc ID 1589254.1 , this module talks about below points :
1) Introduction to patching topics
2) Patching policy and terminology – Document 1573428.2, 209768.1
3) Patching concepts – all patches are created for a specific DB version; stay current on patch sets; interim patches, patch conflict, and merged patches
4) Types of patches – cumulative patch and bundle patch
5) Patch set updates – primary proactive patching strategy
7) Tools and knowledge for patching – patching assistant, patch planner, patching and maintenance advisor
8) Patching and maintenance advisor – detailed review of this resource. 331.1
9) When things go wrong.