Subject Re: [firebird-support] null field size
Author Dimitry Sibiryakov
11.03.2010 15:54, korkless wrote:
> hi all, there's same formula to know (even if not exactly) to know how much space is used by a null field and by a column of nulls (i have same columns where only< 1% of the fields are not null).

Yes, every NULL flag use exactly 1 bit. Of course, empty value buffer
takes some more space. But what's the matter? Are you running out of
your 5Mb hard drive? Time to upgrade!