Connect to database

---

examples/dbi/connect.pl

#!/usr/bin/perl
use strict;
use warnings;

use DBI;

my $dbfile = "sample.db";

my $dsn      = "dbi:SQLite:dbname=$dbfile";
my $user     = "";
my $password = "";
my $dbh = DBI->connect($dsn, $user, $password);

$dbh->disconnect;

Connecting to other databases:

my $dsn = "DBI:mysql:database=$database;host=$hostname;port=$port";
my $dbh = DBI->connect($dsn, $user, $password);