with t as (
select GOODS_CODE, round(avg(STD_COST_PRICE)) as ave
from SKU
group by GOODS_CODE
)
, t2 as (
select SKU_CODE, g.STD_COST_PRICE
from t
inner join SKU
on SKU.GOODS_CODE = t.GOODS_CODE
and t.ave > SKU.STD_COST_PRICE
inner join GOODS g
on g.GOODS_CODE = t.GOODS_CODE
)
update SKU
set STD_COST_PRICE = t2.STD_COST_PRICE,
UPDATE_USER_NAME = 'MODIFY',
USER_UPDATE_DATETIME = '2024-08-31 00:00:00'
from SKU as s
inner join t2
on t2.SKU_CODE = s.SKU_CODE