Answers for "how to clear all migrations in laravel"

php artisan migrate reset

php artisan migrate:reset

delete rows by migration laravel

Comment::where('post_id',$id)->delete();

// in down migration

    public function down()
    {
        Schema::table('package_types', function (Blueprint $table) {
            \App\Models\PackageType::query()->where('id','gt',1)->delete();
        });
    }