require SL::DB::Default;
my $defaults = SL::DB::Default->get;
$number_range_column = 'articlenumber' if $number_range_column eq 'assemblynumber' and length($defaults->$number_range_column) < 1;
require SL::DB::Default;
my $defaults = SL::DB::Default->get;
$number_range_column = 'articlenumber' if $number_range_column eq 'assemblynumber' and length($defaults->$number_range_column) < 1;