Why take the risk, it's easy enough to avoid

my $sql= 'UPDATE EmployerJobs 
          SET Disabled = ? 
          WHERE USERID = ?';

my $dbh = DB::connect ();
my $count = $dbh->do($sql,undef,$DISABLED,$userid);
$dbh->disconnect ();
printf "%d records updated\n",$count;
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also be aware that by not using the ->update_record() method in package DB::TableInfo you could be missing important audit logging or database consistency/integrity checks.