#!/usr/bin/perl

use strict;
use warnings;

use JSON::XS;

use JSON qw( );

use Data::Dumper;


my $json = '{

   "required": [
        {
            "docs": [
                {
                    "sec": "11111",
                    "number": "1"
                }
            ],
            "docs": [
                {
                    "sec": "22222",
                    "number": "2"
                }
            ],
            "name": "Mary Lou"
        },
        {
            "docs": [
                {
                    "sec": "33333",
                    "number": "1"
                }
            ],

            "name": "John De"
        },
        {
            "docs": [
                {
                    "sec": "4444",
                    "number": "1"
                }
            ],

            "name": "Smith Doe"
        },
        {

            "name": "Joseph D."
        }
    ]

}';


my $json_data = JSON->new;
my $data = $json_data->decode($json);

 for my $dta ( @{ $data->{ required } || [] } ){

    if( scalar @{ $dta->{ docs } || [] } ){

      for my $doc_data ( @{ $dta->{ docs } || [] } ){

        if( $doc_data->{'sec'} ) {

         print  "\n Yes: $dta->{'name'} - $doc_data->{'sec'} | $doc_data->{'number'} \n";

        }

       }

     }else {

      warn "\n No sec value, just the name: $dta->{'name'} \n\n";

    }

  }