Errore sul database di WordPress: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'GROUP BY b.name_items ORDER BY b.name_items ASC' at line 7]
SELECT a.completato,b.id_order_items,b.id_items,sum(b.quantity) as result_quantity,b.name_items,b.instructions,b.total_item_price,c.group_name,c.name_options,a.fulfill_at FROM wp_gf_orders_table LEFT outer JOIN wp_gf_items_table b ON b.id_order_items = a.id_order LEFT outer JOIN wp_gf_options_table c ON c.id_items = b.id_items where a.fulfill_at BETWEEN '2020-01-27 18:20:00' AND '2022-05-27 20:21:00' and GROUP BY b.name_items ORDER BY b.name_items ASC