diff --git a/ruoyi-bussiness/src/main/java/com/ruoyi/cms/controller/cms/IndustryController.java b/ruoyi-bussiness/src/main/java/com/ruoyi/cms/controller/cms/IndustryController.java
index bef602f..db5e103 100644
--- a/ruoyi-bussiness/src/main/java/com/ruoyi/cms/controller/cms/IndustryController.java
+++ b/ruoyi-bussiness/src/main/java/com/ruoyi/cms/controller/cms/IndustryController.java
@@ -134,6 +134,10 @@ public class IndustryController extends BaseController
 
     /**
      * 修改行业父级代码
+     * select * from industry where length(remark)=1 order by order_num;
+     * select * from industry where length(remark)=3 and remark like 'A%' order by order_num;
+     * select * from industry where length(remark)=4 and remark like 'A01%' order by order_num;
+     * select * from industry where length(remark)=5 and remark like 'A011%' order by order_num;
      */
     @PostMapping("/updateParentHierarchy")
     @Transactional(rollbackFor = Exception.class)