-25314: Fractional part too small for column '<column_name>', minimum length: <length> 

Explanation:

Error executing the Loader command for exporting data. The format you have defined for the external display of the specified column’s values (DECIMAL or ZONED format) contains too few decimal places. The number required is determined by the column definition in the database instance and/or the operations that are performed on the column values when they are exported.

User Response:

Correct the specifications you made for the external display of this column and re-execute the command.