can we create an SR for clarifying why napply option of opatch is used exactly . http://docs.oracle.com/cd/E11882_01/em.112/e12255/oui7_opatch.htm#OUICG319 1) Napply Command for OUI-based Oracle Homes This command applies interim patches to several Oracle homes at the same time. 2) Or is it used ofr applying multiple patches in single shot ?