Oracle : Ошибка ORA-34871

"(PERMIT06) %a %j %k\nSession-only value '%2p' of %1p has been deleted because a PERMIT change has revealed a duplicate value."
*Cause: Execution of a PERMIT command revealed a permanent dimension or
surrogate value having the same name as the SESSION value.
*Action: If the SESSION value is still needed, add it with a different name.

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