It would be much better for the Perl program that generates the data to write it to a database. However, going with what you have been given:
use warnings;
use strict;
use Data::Dump::Streamer;
my $data = <<DATA;
'main_data' => [
{
'LEVEL' => '12',
'CARNUM' => '1',
'REGIS#' => '1233456678987645RD ',
'ACCOUNT' => '6510334',
'YEAR' => '2008'
},
{
'AMOUNT' => '200.00'
},
{
'LEVEL' => '0',
'CARNUM' => '2',
'REGIS#' => '2234565478345R56T ',
'ACCOUNT' => '6510334',
'YEAR' => '2008'
},
{
'AMOUNT' => '0.00'
}
],
DATA
local $\;
open my $InFile, '<', \$data;
my $str = <$InFile>;
close $InFile;
no strict "vars";
eval "\%hash = ($data);";
my %accounts;
while (@{$hash{main_data}}) {
my ($accountInfo, $amount) = splice @{$hash{main_data}}, 0, 2;
my $acct = $accountInfo->{ACCOUNT};
my $reg = $accountInfo->{'REGIS#'};
delete @{$accountInfo}{'ACCOUNT', 'REGIS#'};
$accounts{$acct}{$reg} = $accountInfo;
$accounts{$acct}{$reg}{AMOUNT} = $amount->{AMOUNT};
}
use strict;
print "$accounts{6510334}{'1233456678987645RD '}{AMOUNT}";
Prints:
200.00
Perl reduces
RSI - it saves typing
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