#!/usr/bin/perl
use DBI;
use DBD::mysql;

my $platform = "mysql";
my $database = "db_name";
my $host = "host_name";
my $port = "port_num";
my $tablename = "hist";
my $user = "user_name";
my $pwd = "pass";

open(STDOUT, ">C:\\perlscripts\\new.txt") || die "Can't open the file";

my $dsn = "dbi:mysql:$database:$host:$port";
my $dbh = DBI->connect($dsn,$user,$pwd) || die "Could not connect: $DBI::errstr\n";

my $query = $dbh->selectall_arrayref("select cus,ta,sum(gd1) as gd1,sum(gd2) as gd2 from hist group by cus,ta order by cus", {Slice => {} });

my $query2 = $dbh->selectall_arrayref("select cus,ta,sum(gd1),sum(gd2) from current group by cus,ta order by cus", {Slice => {} });


foreach my $ref (@$query) {
   push(@{$arry}, join(",",$ref->{cus},$ref->{ta},$ref->{gd1},$ref->{gd2}))."\n";
}

foreach my $ref (@$query2) {
   push(@{$arry2}, join(",",$ref->{cus},$ref->{ta},$ref->{gd1},$ref->{gd2}))."\n";