Oracle : Ошибка ORA-08429

"raw data has invalid digit in display type data"
*Cause: The input raw buffer passed to a UTL_PG RAW_TO_NUMBER
conversion routine contained invalid data. The picture mask
parameter specified a digit, but the corresponding input
from the raw data did not contain a valid digit.
*Action: Either the input data is incorrect, or the picture mask
is incorrect. Correct the appropriate item.

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