On 24 May 2011 14:19, <allies_xposs@...> wrote:

> @martijn,
>
> Yes, my structure with default '0',
> But at my application command is:
>  ' insert into default_test (id)
> values (1);'
>
>
> Not :
> insert into default_test(id, deffed)
> values (2, null);
>
>
> But in data have null, but just 3% from all data.
>
> Thanks
>
> Regard
>
> Allies xposs

if the field was added after some of the data was present, those rows
are unchanged and so will contain null