sqlloader and management of blank or empty fields

[sangi1981]

Hi all,
I hope to find some solution to my question....

I load data into Oracle table using sqlloader; my source is a sybase table.
Some fields are empty strings or contain one blank and are not null, yet in target table these fields are not null.
When I use sqlloader, empty string and blank value become null, so loader goes abort, telling me that I try to load null values into not null fields.

Is there some setting to avoid this behavior?
Thanks in advance

[chulett]

$APT_ORACLE_PRESERVE_BLANKS = True