update contract
id = #{id},
status = #{status},
is_change = #{isChange},
is_show = #{isShow},
old_contract_id = #{oldContractId},
approved_date = DATE_FORMAT(NOW(),'%Y-%m-%d %H:%m:%s'),
update_time = sysdate()
where id = #{upId}
--生产订单
DELETE
FROM production_order
WHERE contract_id = #{contractId};
--生产任务
DELETE
FROM production_order_detail
WHERE contract_id = #{contractId};
--备料
DELETE
FROM material_preparation
WHERE contract_id = #{contractId};