# Create an anonymous arrayref
my $arrayref = [1,2,3];

# Create a reference to an existing array
my @array = (1,2,3);
my $arrayref2 = \@array;

# Get a single value from the arrayref:
my $one = $arrayref2->[0];

# Get all the values from the arrayref:
my ($one,$two,$three) = @$arrayref2;

##</code><code>##

[$sql_return]

##</code><code>##

@$sql_return

##</code><code>##

use Data::Dumper;
#...
my $sql_return = $sth_tss->fetchall_arrayref;
print Dumper $sql_return;