Loading BLANKS into DATE field

Hello
I have a table with so many fields of different data types. One of these fields is bdat (Birth date)., Its definition in table is   bdat DATE NOT NULL

As a default value for some records I have to store BLANKS in this field

But when I am trying to load this with SQL*Loader it is rejecting the records
where BLANKS are specified for DATE field.

Can any one tell me a way to load BLANKS in DATE field ?

Thanks in advance
Suresh Received on Thu Apr 09 1998 - 00:11:24 CDT