Subject RE: [firebird-support] Re: multiple inserts in trigger
Author Sasha
> Firdt idea: NULL's usually need to be handled separately because
> nothing equals NULL, not even NULL. You may only check for NULL using
> the "is null" operator.

Another option for testing null values is to use distinct as in if (value1
is distinct from value2) then...
It's only syntactic sugar as they say but it does save a couple of lines...