Data import extension and data null

Thursday 06 November 2008 8:03:21 pm

How to import a content where sometime data dont exist

to expose my problèm, let's try a little explanation :

here is a article ( title, text , date1 , date2)
the data to import are

title1;bla bla bla; 12/12/206;13/12/2007 
title2;bla bla bla2;;1/12/2007 
title3;bla bla bla3; 2/12/206;10/12/2007 
title4;bla bla bla4; 1/12/206;3/12/2007 
title5;bla bla bla5; 7/12/206;22/12/2007 

how can i do to import the content n°2.

up to now, a data which is null is inserted with a value of 0 ( for a string ), 01/01/1970 for a date etc...

thanks for your answers

Paris, France