WITH tmp AS (
    SELECT
        GOODS_CODE,
        ROUND(AVG(STD_COST_PRICE), 0) AS cost
    FROM
        SKU
    GROUP BY
        GOODS_CODE
)
UPDATE
    GOODS
SET
    UPDATE_USER_NAME = 'MODIFY',
    USER_UPDATE_DATETIME = '2024-08-31 00:00:00',
    STD_COST_PRICE = (
        SELECT
            cost
        FROM
            tmp
        WHERE
            GOODS_CODE = GOODS.GOODS_CODE
            AND GOODS.STD_COST_PRICE < cost
    )
WHERE
    GOODS_CODE IN (
        SELECT
            GOODS_CODE
        FROM
            tmp
        WHERE
            GOODS_CODE = GOODS.GOODS_CODE
            AND GOODS.STD_COST_PRICE < cost
    );