Depend on two more modules to have the following code
emit something:
#use JSON::XS;
use JSON;
my %rec_hash = ('a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5);
my $json = encode_json \%rec_hash;
print "$json\n";
Besides DBI we need the JSON module. As far as I can see
JSON can use JSON:XS as a fast encoder/decoder. This is
why both libraries need to be provided.