sam-api/app/Models/SiteAdmin.php

<?php

namespace App\Models;

use App\Traits\UppercaseAttributes;
use Illuminate\Database\Eloquent\Model;

/**
 * @mixin IdeHelperSiteAdmin
 */
class SiteAdmin extends Model
{
    use UppercaseAttributes; // 테이블 컬럼명 대문자 처리

    protected $table = 'SITE_ADMIN';
    protected $primaryKey = 'UNO';
    public $timestamps = false;

    protected $fillable = [
        'UNO', 'LEVEL'. 'COMMENT'
    ];
}