i want to upgrade from 9i to 11g on same server, how can i approach it

i want to upgrade from 9i to 11g on same server linux red hat, what will be steps.
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sdstuberConnect With a Mentor Commented:
you can install 11g then export and import your 9i db so you could run both in parallel to test.

alternatively, you can backup your 9i then upgrade it in place.

in either case, start by installing 11g
AnandConnect With a Mentor Commented:
in the above solution, 1st one is safe and smooth
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