update SKU
set STD_COST_PRICE = (select STD_COST_PRICE from GOODS where SKU.GOODS_CODE = GOODS.GOODS_CODE),
UPDATE_USER_NAME = 'MODIFY',
USER_UPDATE_DATETIME = '2024-08-31 00:00:00'
from SKU as s
inner join (
select GOODS_CODE, round(avg(STD_COST_PRICE)) as ave
from SKU
group by GOODS_CODE
) t
on t.GOODS_CODE = s.GOODS_CODE
and ave > s.STD_COST_PRICE