diff --git a/code/db/常用语句.sql b/code/db/常用语句.sql
index cf1b26b..37b0c61 100644
--- a/code/db/常用语句.sql
+++ b/code/db/常用语句.sql
@@ -8,9 +8,19 @@ SELECT b.reward_name,
        reward_projects b
  WHERE a.reward_index = b.reward_index;
 
-SELECT *
+SELECT ����,
+       SUM
   FROM ����ÿ�ձ���
+ GROUP BY ����
  ORDER BY ����,
           ����N,
           ��ϯ����,
           ǩ������;
+
+SELECT ����,
+       SUM(�������ۼ�) ������,
+       SUM(������) ���ڱ���,
+       round((SUM(�������ۼ�) / SUM(������)) * 100,
+             0) || '%' ������
+  FROM ��ϯ����ͳ��
+ GROUP BY ����;