From R12.2 onwards oracle has introduced online patching functionality. Online Patching
Online patching uses the latest feature of the Oracle database 11gR2 which is called “Edition Based
In this article, installation of R12.2.x has been shown with detail installation screen. This is a single node installation where database and apps will be installed in same server. This installation was done on a linux
v$active_session_history is a important table to find the wait events inside oracle. In this article we'll show to use this table to find following important information.