ORA-08429: raw data has invalid digit in display type data

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ORA-08429: raw datahas invalid digit in display type data
Cause: The input raw buffer passed to a UTL_PG RAW_TO_NUMBERconversion
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: Eitherthe input data is incorrect, or the picture mask is incorrect. Correct
the appropriate item.