my %rec;
my $sth1 = $dbh_0->prepare ("select * from production.computersystem");
my @fields = @{$sth1->{NAME_lc}};
$sth1->bind_columns (\@rec{@{$sth1->{NAME_lc}}});

my $sth2 = do {
    local $" = ", ";
    my $sql =    "insert into barrycomputersystem (@fields) values (@{[('?')x@fields]})";
    $dbh_1->prepare ($sql);
    };

$sth2->bind_columns (\@rec{@fields});
while ($sth1->fetch) {
    $sth2->execute;
    }