Try this: 
while (my @data = $sth->fetchrow_array){
  print TSCH join(' ', map {defined($_) ? $_ : 'NULL'} @data),"\n";
}

[download]
The NULLs you see were the cause of your warning.

In reply to Re (tilly) 1: Scope is just not for Fresh Breath by tilly
in thread Scope is just not for Fresh Breath by notsoevil

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