Here is some code that I think produces the data structure you want. However it sounds like there may be a better structure or approach to achieve the desired result. Perhaps if you provide more of your code and a clearer description of what you are trying to achieve we may be able to offer more helpful suggestions. 

use strict;
use warnings;

use Data::Dumper;

my %hash;

for my $i ( 1 .. 3 )
{
    my @array;
    for my $j ( 1 .. 3 )
    {
        push @array, $j;
    }
    push @{ $hash{ID} }, \@array;
}

print Dumper( %hash );

[download]
Output
$VAR1 = 'ID';
$VAR2 = [
          [
            1,
            2,
            3
          ],
          [
            1,
            2,
            3
          ],
          [
            1,
            2,
            3
          ]
        ];

[download]

In reply to Re: Adding to hash that contains an array of arrays by rnewsham
in thread Adding to hash that contains an array of arrays by eppo

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