My apps reads USER_TAB_COLUMNS.DEFAULT columns many times. then ORA-32255 error often occurs but not always. it seems when reading NULL long value, this error occurs.
>Is there any error text?
error text is
ORA-32255: Message 32255 not found; product=RDBMS; facility=ORA
I goolgled this error but i dont know if this is oracle bug or not.
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