Oracle : Ошибка ORA-22926

"specified trim length is greater than current LOB value's length"
*Cause: The input length for which to trim the LOB value to is greater
than the current length of the LOB value.
*Action: May not need to trim the LOB value because it's already smaller
than the trim length specified. Or, if trimming the LOB value
really is required, use a smaller trim length.

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