CODE EXAMPLE FOR PHP

laravel joins

// Basic Join Statement
DB::table('users')
          ->join('contacts', 'users.id', '=', 'contacts.user_id')
          ->join('orders', 'users.id', '=', 'orders.user_id')
          ->select('users.id', 'contacts.phone', 'orders.price')
          ->get();
// Left Join Statement
DB::table('users')
      ->leftJoin('posts', 'users.id', '=', 'posts.user_id')
      ->get();
// select * from users where name = 'John' or (votes > 100 and title <> 'Admin')
DB::table('users')
          ->where('name', '=', 'John')
          ->orWhere(function($query)
          {
              $query->where('votes', '>', 100)
                    ->where('title', '<>', 'Admin');
          })
          ->get();