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Feb 01, 2019 at 04:09 PM

Difference between OUI and DBUA? in oracle upgrade from 11g to 12c

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Hi DBA experts,

Can someone please let me know what is the main difference between OUI (oracle universal installer)and DBUA-(Database upgrade assistant), why its needed to do DBUA after OUI activity.

I am preparing to start oracle upgrade on window system from 11g to 12 c.

your help is highly appretiated.

BR, Nilesh