diff --git "a/09\346\235\216\346\266\233/2022-09-27\357\274\210\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232\357\274\211/.keep" "b/09\346\235\216\346\266\233/2022-09-27\357\274\210\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232\357\274\211/.keep"
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git "a/09\346\235\216\346\266\233/2022-09-27\357\274\210\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232\357\274\211/SQLQuery2.sql" "b/09\346\235\216\346\266\233/2022-09-27\357\274\210\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232\357\274\211/SQLQuery2.sql"
new file mode 100644
index 0000000000000000000000000000000000000000..c422e482814f3cb2534758697970e72cee994dbb
--- /dev/null
+++ "b/09\346\235\216\346\266\233/2022-09-27\357\274\210\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232\357\274\211/SQLQuery2.sql"
@@ -0,0 +1,41 @@
+--编写视图实现查询出所有银行卡账户信息，显示卡号，身份证，姓名，余额。
+create view V_AIfo(卡号,身份证,姓名,余额)
+as
+select b.CardNo,a.AccountCode,a.RealName,b.CardMoney from AccountInfo a
+inner join BankCard b on a.AccountId = b.AccountId
+go
+
+select * from V_AIfo
+
+
+create database HTZQ
+go
+use HTZQ
+go
+
+create table Info(
+id int primary key identity(1,1) not null,
+[year] int not null,
+[month] int not null,
+[amount] decimal(10,2) not null
+)
+
+insert into Info values
+('1991',1,1.1),
+('1991',2,1.2),
+('1991',3,1.3),
+('1991',4,1.4),
+('1992',5,1.5),
+('1992',6,1.6),
+('1992',7,1.7),
+('1992',8,1.8)
+
+
+select [year],
+max(case when [month] = 1 then amount else 0 end) m1,
+max(case when [month] = 2 then amount else 0 end) m2,
+max(case when [month] = 3 then amount else 0 end) m3,
+max(case when [month] = 4 then amount else 0 end) m4
+ from Info
+group by [year]
+
diff --git "a/09\346\235\216\346\266\233/2022-09-27\357\274\210\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232\357\274\211/\347\254\224\350\256\260.sql" "b/09\346\235\216\346\266\233/2022-09-27\357\274\210\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232\357\274\211/\347\254\224\350\256\260.sql"
new file mode 100644
index 0000000000000000000000000000000000000000..a28c953b0ce48f316c8903b68581afe879617e0a
--- /dev/null
+++ "b/09\346\235\216\346\266\233/2022-09-27\357\274\210\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232\357\274\211/\347\254\224\350\256\260.sql"
@@ -0,0 +1,97 @@
+use Students
+go
+
+select * from tb_inf_student
+--建立各个生源地学生的荣誉总数视图
+
+
+
+--触发器，存储过程
+--视图：
+--数据表：1.基表 2.临时表(select，)  3.视图（虚拟表）
+
+
+--创建  view:视图 index:索引  proc:存储过程
+
+
+
+--查询学生信息：学号，姓名，学院
+select stu_num, name, school from tb_student
+
+go
+create view V_GetInfo
+as
+select stu_num, name, school from tb_student
+go
+--使用
+--视图是一张虚拟表
+select * from V_GetInfo   --》视图转化：  select stu_num, name, school from tb_student
+
+--删除
+--drop view V_GetInfo
+
+
+--统计各个生源地的荣誉总数
+select * from tb_inf_student
+
+select ori_loca , sum(prize) 荣誉总数 from tb_inf_student group by ori_loca
+
+
+create view V_GetTotalPrize(生源地,荣誉总数)
+as
+select ori_loca , sum(prize) from tb_inf_student group by ori_loca
+
+select * from V_GetTotalPrize
+
+drop view V_GetTotalPrize
+
+
+--建立信息学院学生的视图
+create view V_Info
+as
+select * from  tb_student where school='信息学院' 
+with check option  --涉及的增删只能对信息学院的学生进行操作
+
+--drop view V_Info
+
+select * from V_Info
+
+update V_Info set gender=1 where name = '博文'
+
+insert into V_info values('10114','蜗牛',1,getdate(),'理学院','计科')
+
+
+--定义一个反映学生年龄的视图
+create view V_GetAgeByBirth(学号,姓名,年龄)
+as
+select stu_num,name, (year(getdate()) -  year(birth)) from tb_student
+
+select * from V_GetAgeByBirth
+
+--建立信息学院学生的特长属于艺术特长视图
+select * from tb_student
+select * from tb_inf_student
+
+select * from tb_student join tb_inf_student on tb_student.stu_num = tb_inf_student.stu_num where school='信息学院' and speciality='艺术特长'
+
+go
+create view V_GetSpecBySch
+as
+select tb_student.*,hobby,speciality,ori_loca,prize from tb_student join tb_inf_student on tb_student.stu_num = tb_inf_student.stu_num where school='信息学院' and speciality='艺术特长'
+go
+
+select * from V_GetSpecBySch where ori_loca = '北京'
+
+--drop view V_GetSpecBySch
+
+
+
+create view V_GetOriInBJ
+as
+select * from V_GetSpecBySch where ori_loca = '北京'
+
+select * from V_GetOriInBJ
+
+pivot
+
+