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    Oracle Error ORA-02439: Unique index on a deferrable constraint is not allowed

    admin November 15, 2022 No Comments

    Oracle Error Message

    ORA-02439: Unique index on a deferrable constraint is not allowed

    Reason for the Error

    attempted to enable a deferrable primary key/unique constraint that has an existing unique index on the constraint columns.

    Solution

    Drop the index on the constraint columns or make the constraint not deferrable.

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