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Continue to ChatUpgrade Oracle 11gR2 (11.2.0.4) database to 12cR2 (12.2.0.1) http://oracle-help.com/oracle-12c/oracle-12cr2/upgrade-oracle-11gr2-11-2-0-4-database-12cr2-12-2-0-1/
Upgrade Oracle 11gR2 (11.2.0.4) database to 12cR2 (12.2.0.1) http://oracle-help.com/oracle-12c/oracle-12cr2/upgrade-oracle-11gr2-11-2-0-4-database-12cr2-12-2-0-1/