diff --git "a/16\345\210\230\346\260\270\346\275\230/\344\275\234\344\270\232/2022-10-10\350\247\246\345\217\221\345\231\250\344\275\234\344\270\232.sql" "b/16\345\210\230\346\260\270\346\275\230/\344\275\234\344\270\232/2022-10-10\350\247\246\345\217\221\345\231\250\344\275\234\344\270\232.sql"
new file mode 100644
index 0000000000000000000000000000000000000000..c426a52dfcc7bff1eb6cc9a7f47307ed0bab483f
--- /dev/null
+++ "b/16\345\210\230\346\260\270\346\275\230/\344\275\234\344\270\232/2022-10-10\350\247\246\345\217\221\345\231\250\344\275\234\344\270\232.sql"
@@ -0,0 +1,40 @@
+use master
+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"。
+--这是删除触发器 DROP TRIGGER tri_a
+create trigger tri_a
+on People for insert 
+as
+	declare @departmentid varchar(20) (select DepartmentId from inserted)
+	if not exists(select * from Department where DepartmentId=@departmentid)
+	begin 
+	 insert into Department values (@departmentid,'新部门')
+	 end
+
+insert into People(DepartmentId,PeopleName,PeopleSex,PeopleSalary) values('005','赵云','男',9000)
+
+--（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。
+create trigger tri_b
+on Department for delete
+as
+delete from people where DepartmentId=(select DepartmentId from deleted)
+
+delete  from Department where DepartmentId='005'
+
+
+--（3）创建一个触发器，删除一个部门的时候判断该部门下是否有员工，有则不删除，没有则删除。**
+
+--（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
+create trigger tri_d
+on Department for update
+as
+	declare @oldid varchar(20),@newid varchar(20)
+	select @oldid=DepartmentId from deleted
+	select @newid=DepartmentId from deleted
+	update people set DepartmentId=@newid where DepartmentId=@oldid
+
+update Department set DepartmentId='006' where DepartmentId='001'
+
+
+DROP TRIGGER tri_d
diff --git "a/16\345\210\230\346\260\270\346\275\230/\347\254\224\350\256\260/2022-10-10\347\254\254\345\215\201\344\272\214\346\254\241\347\254\224\350\256\260\350\247\246\345\217\221\345\231\250.md" "b/16\345\210\230\346\260\270\346\275\230/\347\254\224\350\256\260/2022-10-10\347\254\254\345\215\201\344\272\214\346\254\241\347\254\224\350\256\260\350\247\246\345\217\221\345\231\250.md"
new file mode 100644
index 0000000000000000000000000000000000000000..f43e8fd9e82071fc0bfc3ca7c51f7bec6257e4a5
--- /dev/null
+++ "b/16\345\210\230\346\260\270\346\275\230/\347\254\224\350\256\260/2022-10-10\347\254\254\345\215\201\344\272\214\346\254\241\347\254\224\350\256\260\350\247\246\345\217\221\345\231\250.md"
@@ -0,0 +1,34 @@
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+
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+
+
+ 瑙﹀彂鍣ㄥ垎绫�
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+
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+CREATE TRIGGER <瑙﹀彂鍣ㄥ悕绉�>
+ON table_name
+FOR [DELETE, INSERT, UPDATE]
+AS
+  T-SQL璇彞
+GO
+--WITH ENCRYPTION琛ㄧず鍔犲瘑瑙﹀彂鍣ㄥ畾涔夌殑SQL鏂囨湰
+--DELETE, INSERT, UPDATE鎸囧畾瑙﹀彂鍣ㄧ殑绫诲瀷
+ 鎬荤粨
+
+ 1.鎻掑叆鎿嶄綔锛圛nsert锛� 
+*\*inserted 琛╘*鏈夋暟鎹紝*\*deleted 琛╘*鏃犳暟鎹� 
+
+2.鍒犻櫎鎿嶄綔锛圖elete锛� 
+*\*inserted 琛╘*鏃犳暟鎹紝*\*deleted 琛╘*鏈夋暟鎹� 
+
+3.鏇存柊鎿嶄綔锛圲pdate锛� 
+*\*inserted 琛╘*鏈夋暟鎹紙鏂版暟鎹級锛�*\*deleted 琛╘*鏈夋暟鎹紙鏃ф暟鎹級 
\ No newline at end of file