Summary
We've now reached the end of this chapter. In this chapter, we have seen what are the different types of patches and the best practices involved in using the OPatch utility. Apart from that we have also seen the following:
How to apply the interim/bug fix patch on a logical standby
How to apply a PSU patch on a physical standby database using a Data Guard broker
How to upgrade a patch set from 11.2.0.1 to 11.2.0.3