$dbh = new Connection('mysql:host=localhost;dbname=test', $user, $pass);
$pdo = new Connection(
'mysql:host=hostname;dbname=defaultDbName',
'username',
'password',
array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8")
);
$dbh = new Connection('pgsql:dbname=$dbname; host=$host; username=$username; password=$password');
$pdo = new Connection( 'sqlite::memory:', null, null, array(PDO::ATTR_PERSISTENT => true) );
sqlite2:mydb.sq2