Oracle : Ошибка ORA-31407

"end_date must be greater than the begin_date"
*Cause: The end data of the change set is earlier than the begin date.
The end date must always be later in time than the begin date,
so that the duration between the begin and end dates is a
positive amount of time.
*Action: Change the begin date and/or the end date, so that the end date
is later than the begin date.

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