> > I ve re-created my database and i used DEFAULT NULL to create the
> > tables, but it seens that it still leave the data "blank" on the
> > field, is there some way to write NULL in the field if i send a
> > blank data? or i ll have to change all my php code to send NULL
> > instead of a empty data?
>
> If you want to store NULL, send NULL.

The other alternative is to write triggers to change the value from
blank to NULL (though I've never heard about anyone having a trigger
changing things TO something unknown, normally people prefer to change
to a known value).

Set