From 7f7f13bad9ca47951cb34a22053e0f608a29b896 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E6=B6=9B?= <1986456126@qq.com>
Date: Tue, 27 Sep 2022 15:20:56 +0000
Subject: [PATCH 1/2] =?UTF-8?q?=E6=96=B0=E5=BB=BA=202022-09-27=EF=BC=88?=
 =?UTF-8?q?=E7=AC=AC=E4=B8=83=E6=AC=A1=E4=BD=9C=E4=B8=9A=EF=BC=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../.keep"                                                        | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 "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"

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 0000000..e69de29
-- 
Gitee


From 10bf6c870a19641bf095ffd4b9f418568d51bb27 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E6=B6=9B?= <1986456126@qq.com>
Date: Tue, 27 Sep 2022 15:21:42 +0000
Subject: [PATCH 2/2] =?UTF-8?q?=E6=9D=8E=E6=B6=9B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: 鏉庢稕 <1986456126@qq.com>
---
 .../SQLQuery2.sql"                            | 41 ++++++++
 .../\347\254\224\350\256\260.sql"             | 97 +++++++++++++++++++
 2 files changed, 138 insertions(+)
 create mode 100644 "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"
 create mode 100644 "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"

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 0000000..c422e48
--- /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 0000000..a28c953
--- /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
+
+
-- 
Gitee