如何清空zen cart网站中的所有产品，分类，特价数据？在数据库查询以下代码：
TRUNCATE `categories`;
TRUNCATE `categories_description`;
TRUNCATE `products`;
TRUNCATE `products_attributes`;
TRUNCATE `products_attributes_download`;
TRUNCATE `products_discount_quantity`;
TRUNCATE `products_notifications`;
TRUNCATE `products_options`;
TRUNCATE `products_options_values`;
TRUNCATE `products_options_values_to_products_options`;
TRUNCATE `product_music_extra`;
TRUNCATE `products_description`;
TRUNCATE `products_to_categories`;
TRUNCATE `specials`;
