laravel puts tbl before tables on orm code example

Example 1: update query in laravel eloquent

$data = DB::table('cart')
                ->where('crt_id', $id)
               ->update(['crt_status' =>'0']);

Example 2: model laravel

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;

class User extends Model
{
    /**
     * The "booted" method of the model.
     *
     * @return void
     */
    protected static function booted()
    {
        static::addGlobalScope('age', function (Builder $builder) {
            $builder->where('age', '>', 200);
        });
    }
}