-25354: Error in the command for uploading data; the LONG data file specification is missing
Explanation:
This error occurs when uploading or updating data with the DATALOAD or DATAUPDATE command if all LONG values of a column that are to be inserted are in a LONG data file.
The SAP DB Loader was unable to find any specifications in the source file stating where the values are located in the LONG data file.
User Action:
Correct the data file and re-execute the command.