INSERT INTO product (merchant_id, name, category, description, base_price, image, status) VALUES (#{merchantId}, #{name}, #{category}, #{description}, #{basePrice}, #{image}, #{status}) SELECT * FROM product WHERE id = #{id} SELECT * FROM product WHERE merchant_id = #{merchantId} AND status = #{status} ORDER BY create_time DESC SELECT * FROM product WHERE 1=1 AND category = #{category} AND status = #{status} ORDER BY create_time DESC SELECT p.*, SUM(oi.quantity) as sales FROM product p LEFT JOIN order_item oi ON p.id = oi.product_id LEFT JOIN `order` o ON oi.order_id = o.id WHERE o.order_status = 'COMPLETED' AND p.status = 1 GROUP BY p.id ORDER BY sales DESC LIMIT #{limit} UPDATE product name = #{name}, category = #{category}, description = #{description}, base_price = #{basePrice}, image = #{image}, status = #{status}, WHERE id = #{id} UPDATE product SET status = #{status} WHERE id = #{id}