raw sql in laravel code example

Example 1: raw queries in laravel

DB::statement('UPDATE users SET role_id = 1 WHERE role_id IS NULL AND YEAR(created_at) > 2020');

Example 2: TRANSACTON LARAVEL QUERY BUILDER

DB::beginTransaction();

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