Re: hash from CSV-like structure

[jZed]

I'm not really sure what your criteria for duplicates is, but this produces the results you requested from the data you gave:

#!/usr/bin/perl
use warnings;
use strict;
use Data::Dumper;
my $hash;
my %results;
for my $row( split("\n",join('',<DATA>)) ){
    my($key1,$key2,$val) = split('\|_\|',$row);
    next if $results{$val} and $hash->{$key1}->{$key2};
    $hash->{$key1}->{$key2}=$val;
    $results{$val}=1;
}
print Dumper $hash;
__DATA__
200326951|_|rel_Access1|_|200315482|_|
200326951|_|rel_Access1|_|200315786|_|
200326951|_|rel_Access2|_|200315482|_|
200326951|_|rel_Access2|_|200315786|_|

[manav_gupta]

Super, many thanks jZed - that works!

[jZed]

To avoid undef warnings, you might want to make the duplicate check more like this:

    next if $results{$val} 
     and $hash->{$key1}
     and $hash->{$key1}->{$key2};

[manav_gupta]

Thanks - this fits my needs exactly!