diff --git a/bonus-modules/bonus-smart-canteen/src/main/resources/mapper/drp/DrpInventoryMapper.xml b/bonus-modules/bonus-smart-canteen/src/main/resources/mapper/drp/DrpInventoryMapper.xml
index e1664874..6cdc86e2 100644
--- a/bonus-modules/bonus-smart-canteen/src/main/resources/mapper/drp/DrpInventoryMapper.xml
+++ b/bonus-modules/bonus-smart-canteen/src/main/resources/mapper/drp/DrpInventoryMapper.xml
@@ -2,6 +2,19 @@
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="com.bonus.canteen.core.drp.mapper.DrpInventoryMapper">
 
+    <update id="minusInventoryNumById">
+        UPDATE drp_inventory
+        SET material_num = material_num - #{fetchNum}
+        WHERE
+            inventory_id = #{inventoryId}
+    </update>
+    <update id="plusInventoryNumById">
+        UPDATE drp_inventory
+        SET material_num = material_num + #{materialNum}
+        WHERE
+            inventory_id = #{inventoryId}
+    </update>
+
     <!-- AI电子秤原料搜索 -->
     <select id="selectAndroidMaterialList"
             resultType="com.bonus.canteen.core.drp.vo.AndroidSearchMaterialVO">