laravel Product::select -> with code example

Example 1: join in laravel eloquent

$customer = DB::table('customers')
                ->join('shops', 'customers.shop_id', '=', 'shops.shop_id')
                ->where('customer_contact', $contact_no)
                ->get();

Example 2: laravel db inserr

DB::table('users')->insert([
    ['email' => '[email protected]', 'votes' => 0],
    ['email' => '[email protected]', 'votes' => 0],
]);