Perform the following steps to upgrade the Components Configuration using the 12.2.1.4.0 Upgrade Assistant.
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Open a command prompt window as administrator.
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Navigate to
C:\<Oracle_iAS_12.2.1.4_Home>\oracle_common\upgrade\bin
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Perform ua.bat.
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Click Next.
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Select All Configuration Used by the Domain and enter the directory of the reconfigured 12c domain.
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Click Next.
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Check all prerequisites and select the check boxes when done.
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Click Next.
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Click Upgrade.
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Click Next.
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Click Close.