Answers for "db::create laravel"

laravel db::query update

DB::table('user')->where('email', $userEmail)->update(array('member_type' => $plan));

TRANSACTON LARAVEL QUERY BUILDER

DB::beginTransaction();

try {
    DB::insert(...);    
    DB::commit();
} catch (\Throwable $e) {
    DB::rollback();
    throw $e;
}