Oracle : Ошибка ORA-26051

"internal error parsing packed decimal format string"
*Cause: A packed decimal field with a non-zero scale factor is mapped to
a character column. In order to perform the datatype conversion,
a numeric format string must be created based on the input field's
precision and scale specifications. Direct path loader
encountered an error in creating this format string.
*Action: Examine the packed decimal field's precision and scale
specifications and make sure that they contain valid values.

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