diff --git a/MySQL_change.sql b/MySQL_change.sql
index 845ca61..c6ad657 100644
--- a/MySQL_change.sql
+++ b/MySQL_change.sql
@@ -383,3 +383,6 @@ ALTER TABLE `guides`
 
 
 
+# 21:06 ‎2021/‎10/‎25
+ALTER TABLE `orders`
+	CHANGE COLUMN `price` `price` DECIMAL(20,2) NOT NULL COMMENT '订单总价（单价*数量）' AFTER `num`;