perlmysqlconnect.pl:

#!/usr/bin/perl

# PERL MODULE
use Mysql;

# HTTP HEADER
print "Content-type: text/html \n\n";

# CONFIG VARIABLES
$host = "localhost";
$database = "store";
$tablename = "inventory";
$user = "username";
$pw = "password";

# PERL MYSQL CONNECT
$connect = Mysql->connect($host, $database, $user, $pw);

that was on the tutorial , just google for more info