UPDATE  SKU
SET     STD_COST_PRICE = T1.STD_COST_PRICE
 ,UPDATE_USER_NAME = 'MODIFY'
 ,USER_UPDATE_DATETIME = '2024-08-31 00:00:00'
FROM    SKU as T
            INNER JOIN GOODS AS T1
                ON T.GOODS_CODE = T1.GOODS_CODE	
WHERE T.STD_COST_PRICE < (
 SELECT ROUND(AVG(STD_COST_PRICE), 1) as ave
 FROM SKU
 GROUP BY GOODS_CODE
 )