-- 处方作废字段
ALTER TABLE `zyt_tcm_prescription` ADD COLUMN `void_status` tinyint(1) NOT NULL DEFAULT 0 COMMENT '作废状态：0-正常 1-已作废' AFTER `doctor_signature`;
ALTER TABLE `zyt_tcm_prescription` ADD COLUMN `void_time` int(10) unsigned DEFAULT NULL COMMENT '作废时间' AFTER `void_status`;
ALTER TABLE `zyt_tcm_prescription` ADD COLUMN `void_by` int(11) unsigned DEFAULT NULL COMMENT '作废操作人ID' AFTER `void_time`;
ALTER TABLE `zyt_tcm_prescription` ADD COLUMN `void_by_name` varchar(50) DEFAULT '' COMMENT '作废操作人姓名' AFTER `void_by`;
