diff --git "a/06\351\231\210\346\242\205\351\246\231/\344\275\234\344\270\232/2022.10.09\344\275\234\344\270\232.sql" "b/06\351\231\210\346\242\205\351\246\231/\344\275\234\344\270\232/2022.10.09\344\275\234\344\270\232.sql"
new file mode 100644
index 0000000000000000000000000000000000000000..d87fa778f225389a0d6f8d116c13097215a33dce
--- /dev/null
+++ "b/06\351\231\210\346\242\205\351\246\231/\344\275\234\344\270\232/2022.10.09\344\275\234\344\270\232.sql"
@@ -0,0 +1,46 @@
+use test_trigger
+go
+
+select * from Department
+select * from People
+--（1）假设有部门表和员工表，在添加员工的时候，该员工的部门编号如果在部门表中找不到，
+-- 则自动添加部门信息，部门名称为"新部门"。
+go
+-- drop trigger tri_insert
+create trigger tri_insert
+on People for insert
+as 
+	declare @code varchar(10)
+	set @code = (select DepartmentId from inserted)
+	if exists(select DepartmentId from inserted where DepartmentId not in(select DepartmentId from deleted))
+	begin
+		insert into Department values(@code,'新部门')
+	end
+
+insert into People values('002','莉莉','女',114554)
+-- delete from People where PeopleName = '莉莉'
+
+
+--（2）触发器实现，删除一个部门的时候将部门下所有员工全部删除。
+-- insert into Department values('007','测试部')
+-- insert into People values('007','jojo','男',114514)
+go
+create trigger tri_del
+on Department for delete
+as
+	delete from People where DepartmentId = (select DepartmentId from deleted) 
+
+delete from Department where DepartmentId = '007'
+
+
+--（4）修改一个部门编号之后，将该部门下所有员工的部门编号同步进行修改
+select * from Department
+select * from People
+go
+create trigger tri_update
+on Department for update 
+as 
+	update People set DepartmentId = (select DepartmentId from inserted) 
+	where DepartmentId = (select DepartmentId from deleted)
+
+update Department set DepartmentId = '007' where DepartmentId = '001'
\ No newline at end of file
diff --git "a/06\351\231\210\346\242\205\351\246\231/\347\254\224\350\256\260/2022.10.09\350\247\246\345\217\221\345\231\250\357\274\210trigger\357\274\211.md" "b/06\351\231\210\346\242\205\351\246\231/\347\254\224\350\256\260/2022.10.09\350\247\246\345\217\221\345\231\250\357\274\210trigger\357\274\211.md"
new file mode 100644
index 0000000000000000000000000000000000000000..ad2181c34770af75892cc4b8443ad7fcf51109eb
--- /dev/null
+++ "b/06\351\231\210\346\242\205\351\246\231/\347\254\224\350\256\260/2022.10.09\350\247\246\345\217\221\345\231\250\357\274\210trigger\357\274\211.md"
@@ -0,0 +1,31 @@
+2022.10.09瑙﹀彂鍣紙trigger锛�
+
+DML瑙﹀彂鍣細澧炲垹鏀�
+
+afte锛氬鍒犳敼涔嬪悗鎵ц鐨勪箣鍓嶆鏌�
+
+inserted锛氬彈褰卞搷琛屾暟鐨勪腑鐨勭粨鏋滈泦
+
+```
+creat trigger 鍚嶅瓧
+on 琛ㄥ悕 for insert
+as
+澹版槑1
+澹版槑2
+select锛堟煡璇級
+print
+insert into锛堟柊澧烇級
+update锛堜慨鏀癸級
+drop trigger 鍚嶅瓧锛堝垹闄わ級
+```
+
+inserted琛細鐢ㄤ簬瀛樺偍insert鍜寀pdate璇彞鎵�褰卞搷鐨勮鐨勫壇鏈�
+
+1.鎻掑叆鎿嶄綔锛圛nsert锛� 
+inserted 琛� 鏈夋暟鎹紝deleted 琛ㄦ棤鏁版嵁 
+
+2.鍒犻櫎鎿嶄綔锛圖elete锛� 
+inserted 琛ㄦ棤鏁版嵁锛宒eleted 琛ㄦ湁鏁版嵁 
+
+3.鏇存柊鎿嶄綔锛圲pdate锛� 
+inserted 琛ㄦ湁鏁版嵁锛堟柊鏁版嵁锛�,deleted 琛� 鏈夋暟鎹紙鏃ф暟鎹級
\ No newline at end of file