diff --git "a/\350\202\226\351\243\236\351\271\217/20240929 \345\255\230\345\202\250\350\277\207\347\250\213 \347\273\223\346\236\204.md" "b/\350\202\226\351\243\236\351\271\217/20240929 \345\255\230\345\202\250\350\277\207\347\250\213 \347\273\223\346\236\204.md"
index 294b1686d9165ef3dda5e12a888017b4815f3798..2ad0649a06fe1d864c286cd3cfaff64adcde941a 100644
--- "a/\350\202\226\351\243\236\351\271\217/20240929 \345\255\230\345\202\250\350\277\207\347\250\213 \347\273\223\346\236\204.md"	
+++ "b/\350\202\226\351\243\236\351\271\217/20240929 \345\255\230\345\202\250\350\277\207\347\250\213 \347\273\223\346\236\204.md"	
@@ -21,36 +21,60 @@ select 字段  case when 表达式 then 结果 end  from 表名
 - 薪资 > 30000  不加
 
 最后打印几个员工增加了奖金
-DROP PROCEDURE if EXISTS pro_inc; 
-delimiter //
-CREATE PROCEDURE pro_inc(in a DECIMAL(10,2),IN b DECIMAL(10,2))
-BEGIN
-DECLARE fir_empo int;
-DECLARE lst_empo int;
-SELECT empno INTO fir_empo FROM emp ORDER BY empno  LIMIT 1;
-SELECT empno into lst_empo  FROM emp ORDER BY empno DESC LIMIT 1;
-WHILE  fir_empo<lst_empo  DO
-SET fir_empo=fir_empo+1;
-UPDATE emp
-	set comm = CASE 
-	WHEN sal<a  THEN IFNULL(comm,0)+100
-  
-	WHEN sal>a AND sal<b THEN ifnull(comm,0)+200
-  
-	ELSE
-		comm
- END; 
-END WHILE;
-
- SELECT comm FROM emp;
- 
-END//
-
-delimiter;
-
-CALL pro_inc(10000,20000);
+DROP PROCEDURE num01;
+CREATE PROCEDURE num01 ( ) BEGIN
+DECLARE sum int DEFAULT 0;
+DECLARE fir_id int;
+DECLARE las_id int;
+  DECLARE cur_sal DECIMAL ( 8, 2 );
+    DECLARE e_id int;
+   DECLARE pri_sal DECIMAL(8,2);     
+        SELECT empno,IFNULL(comm,0),sal INTO e_id,pri_sal,cur_sal FROM emp;
+        SELECT min(empno),max(empno) INTO fir_id,las_id FROM emp;
+       while fir_id <= las_id DO
+       IF cur_sal < 10000 THEN
+            UPDATE emp SET comm = comm + 100 WHERE empno = e_id;
+        ELSEIF cur_sal BETWEEN 10000 AND 20000 THEN
+            UPDATE emp SET comm = comm + 200 WHERE empno = e_id;
+        END IF;
+        SET fir_id =fir_id +1;
+         if((select comm from emp where empno = e_id) != pri_sal) then 
+      set sum = sum + 1;     
+        end if；
+    END while;
+
+  SELECT sum;
+END;
+CALL  num01 ();
 
 3. 分组统计全公司各部门的平均工资，人数，及10000以下、10001-20000、20001-30000、30001以上的人数
+CREATE PROCEDURE pro_num()
+BEGIN
+DECLARE fir_id int;
+DECLARE las_id int;
+DECLARE avg_sal DECIMAL(10,2);
+DECLARE dept_num int;
+DECLARE less_1 int;
+DECLARE bew1 int;
+DECLARE bew2 int;
+DECLARE more3 int;
+SELECT min(deptno),max(deptno) INTO fir_id,las_id FROM emp; 
+WHILE fir_id<=las_id DO
+	set fir_id=fir_id+10;
+  SELECT avg(sal),count(deptno) INTO avg_sal,dept_num FROM emp GROUP BY deptno HAVING deptno=fir_id;
+  select count(deptno) into less_1 from emp where sal < 10000 group by deptno having deptno = fir_id;
+		 
+		 select count(deptno) into bew1 from emp where sal >= 10001 and sal <= 20000 group by deptno having deptno = fir_id;
+		 
+		 select count(deptno) into bew2 from emp where sal >= 20001 and sal <= 30000 group by deptno having deptno = fir_id;
+		 
+		 select count(deptno) into more3 from emp where sal > 30001 group by deptno having deptno = fir_id;
+     
+     
+     SELECT CONCAT('各部门平均工资为',avg_sal,'人数为',dept_num,'10000以上',less_1,'10000-20000',bew1,'20001-30000',bew2,'30001',more3);
+END WHILE;
 
+END;
+CALL pro_num()
 ```
 
diff --git "a/\350\202\226\351\243\236\351\271\217/20241014\350\247\246\345\217\221\345\231\250\344\275\234\344\270\232.md" "b/\350\202\226\351\243\236\351\271\217/20241014\350\247\246\345\217\221\345\231\250\344\275\234\344\270\232.md"
index db3fdf31f373ad36cab3865626f645c729ee7349..e345e03bddae9e860ec0a88be6d8ab3b18361ea2 100644
--- "a/\350\202\226\351\243\236\351\271\217/20241014\350\247\246\345\217\221\345\231\250\344\275\234\344\270\232.md"
+++ "b/\350\202\226\351\243\236\351\271\217/20241014\350\247\246\345\217\221\345\231\250\344\275\234\344\270\232.md"
@@ -108,5 +108,13 @@ END if;
 END;
 -- 课后作业
 # 1.要求部门表的中总工资一定是由员工表产生的，是否可以实现对部门总工资的保护，不让人随便改动部门表，让它的总工资只能由员工表的数据来影响。
+CREATE TRIGGER tri_num BEFORE UPDATE ON dept FOR each ROW
+BEGIN
+DECLARE sum_sal DECIMAL(10,2);
+SELECT sum(salary) into sum_sal FROM emp WHERE dept_id = new.dept_id;
+if sum_sal <> new.total_salary  THEN 
+SIGNAL SQLSTATE '45000' SET message_text ='无法更改';
+END if;
+END;
 
 ```