some_error:ORA-01555: 快照过旧: 回退段号 (名称为 "") 过小 ORA-22924: 快照太旧select * from ( select * from ( select * from ( select * from shopxg_product order by pro_id desc ) where rownum<= 8*1 and ( 1=1 and pro_is_recomm='1' and pro_shop_id=1170 and pro_is_down='0' and pro_is_waste='0') ) order by pro_id asc ) where rownum<= 8 and ( 1=1 and pro_is_recomm='1' and pro_shop_id=1170 and pro_is_down='0' and pro_is_waste='0') order by pro_id desc