ALTER TABLE `tran_process_info` 
ADD COLUMN `tran_price` float(11, 4) NULL COMMENT '当前运输单价' AFTER `process_no`,
ADD COLUMN `tran_price_ing` float(11, 4) NULL COMMENT '审核中的运输单价' AFTER `tran_price`,
ADD COLUMN `price_status` varchar(100) NULL COMMENT '单价状态' AFTER `tran_price_ing`;