{
    for my $dbVer (qw( 0.9 1.0 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 4.0 4.1 4.2 4.3 4.4 5.0 6.0)) {
        $dataBase = "mongodb$dbVer";
        my $repo = $DB->get($dataBase);
        $repo->delete if $repo;
    }
}

