BLANK FROM SOURCE IS CONVERTED TO 0 while loading into Table - response (1) by KS42982

Of course, we can have NULL values in integer column. Check your ETL code, it must be converting NULL to 0 somewhere. Also, check the table definition and see if there is "DEFAULT 0" for this column. You should change that too because while inserting if there is nothing coming from source for this column, it would default it to 0.