You have executed a command to import (IMPORT) or update (UPDATE) data from a set of table columns. Here, <null_count> NULL values were inserted.
If the number <null_count> of NULL values that were entered is to small or too large, check the NULL value representation <null_representation> in your command and in your file. If the data fields of the data file match the NULL value representation <null_representation> but should not be imported or updated as NULL values, change the null value representation in the command. Restore the initial status and re-execute the command.