use DBI;

if(!$dbh) {
$dbh = DBI->connect("dbi:$CFG::DB_TYPE:dbname=$CFG::DB_NAME;host=$CFG::DB_HOST",
                    "$CFG::DB_USER",
                    "$CFG::DB_USER_PASSWORD",
                    { RaiseError => 1, AutoCommit => 0 });

}
1;
