db query laravel code example

Example 1: laravel sql query

use Illuminate\Support\Facades\DB;

$users = DB::select('select * from users');

foreach ($users as $user) {
    echo $user->name;
}

Example 2: laravel wher in

$users = DB::table('users')
                    ->whereIn('id', [1, 2, 3])
                    ->get();

Example 3: laravel db query

$users = DB::table('users')
            ->where('votes', '>', 100)
            ->orWhere(function($query) {
                $query->where('name', 'Abigail')
                      ->where('votes', '>', 50);
            })
            ->get();

Example 4: laravel join

$latestPosts = DB::table('posts')
                   ->select('user_id', DB::raw('MAX(created_at) as last_post_created_at'))
                   ->where('is_published', true)
                   ->groupBy('user_id');

$users = DB::table('users')
        ->joinSub($latestPosts, 'latest_posts', function ($join) {
            $join->on('users.id', '=', 'latest_posts.user_id');
        })->get();

Example 5: TRANSACTON LARAVEL QUERY BUILDER

DB::beginTransaction();

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

Example 6: DB::table('users')->get();

DB::select('SELECT * FROM users WHERE name = ?', array(Input::get('name')));