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Oracle實驗一 熟悉ORACLE環境並練習SQL操作

本文轉載自   查看原文   2019-12-27 19:14   870    數據庫

實驗一、熟悉ORALCE環境並練習SQL操作

一、目的與要求

本實驗主要是熟悉ORACLE的運行環境，在CLIENT端進行聯接設置與服務器聯通，進入ORACLE的SQL*PLUS或SQL Developer的操作環境，進一步建立表格，並考慮主鍵、外鍵及值約束，進行相應的測試與查詢等操作。

二、操作環境

硬件：主頻2GHz以上服務器（內存2GB以上、硬件空閑2.2GB以上），主頻1GHz以上微機，內存1GB以上。

軟件：WINDOWS XP/2000/2003/或Win7/Win8/Win10等。如操作系統是 SERVER版， 可安裝ORACLE/9i/10g/11g/12C FOR NT/WINDOWS(注意有32位與64位的區別，可選企業版)； 如果Windows非server如XP/win7等，安裝時請選擇個人版(PERSONAL)，注意安裝時要有兼容性設置與用管理員運行。安裝過程中需要關注系統預定義的賬號SYS與SYSTEM的密碼設置。

三、實驗內容

1.上機步驟

在實驗室上機時,一般安裝時管理員已設置好.先找到windows中的oracle服務（一般為OracleServiceORCL，如下圖1）,啟動此服務,再找到sql*plus所在的位置（一般桌面上有如下圖2的程序組有）,運行即可進行登錄界面.

 

圖1 Oracle在計算機系統中的服務

 

 

 圖2稱SQL*Plus在系統程序組中的位置

實驗室現有環境操作步驟：

通過桌面我的電腦找到管理服務的入口，如圖3，或者通過資源管理器找到管理。

 

 

 

圖3 通過桌面我的電腦找到管理服務的入口

然后找到服務，如圖4。

 

 

 

 

圖4 系統中的服務

再找啟動oracle的服務如圖1。

（1） 從桌面或在程序中（圖2）執行SQL*PLUS

（2） 輸入：system/manager(密碼可能有變化)

（3） 在SQL>狀態下輸入建立用戶命令:

create user username identified by password;

其中username與password不要數字開頭，用戶名username中按規則加學號后3位作后綴。如：U_J101表示尾數為J101號的用戶。

（4） 給用戶授權：

grant resource,connect to username;

(5) 連接用戶：

connect username/password

在SQL>狀態下，就可以執行建表等操作了。

 

2.根據要求建立如下表

定義基本表格major_????（專業）與stud_???(學生），關系模式如下(類型長度自定義)：

major_???(MajorNo專業編號 Primary key, MNAME 專業名稱,loc 地址 in(主校區，南校區，新校區，鐵道校區，湘雅校區),mdean 專業負責人)）

stud_???(SNO primary key, SNAME, SEX (男，女，其他),TEL ,E-MAIL (基本格式判斷), birthday >=’19990731’ ,MNO 班長學號  FK，MajorNo 專業編號 FK )

其中學號的第3，4位為MajorNo（專業編號）。

注意表的命名規則。 

3.插入樣本數據

插入3個專業，如計算機科學與技術，物聯網工程，數據科學與大數據技術，每個專業不少於10個人，其中包括自己的信息。

測試相關的完整性約束，並注意保留出錯的提示，分析出錯的原因。

 

4．為每個學生建立相關用戶，實現權限控制，每個學生可查詢自己的信息，班長可查詢本班所有學生信息； 為每個專業負責人建立用戶，每個專業負責人可查詢本專業所有學生信息。

 

四、實驗過程

1.建立用戶u_j524,密碼為p123456,並完成相關操作

drop user u_j524 cascade;
create user u_j524 identified by p123456;
grant resource,connect,dba to u_j524;
conn u_j524/p123456

  2.定義基本表格t_major_j432（專業）與t_stud_j432(學生），關系模式如下：

t_major_j432(

       MNO專業編號 Primary key,

       MNAME 專業名稱,

       loc 地址 in(主校區，南校區，新校區，鐵道校區，湘雅校區),

       mdean 專業負責人)）

t_stud_j432(SNO primary key,

       SNAME,

       SEX (男，女，其它，其他),

       TEL ,E-MAIL (基本格式判斷),

       birthday >=’19990731’ ,

       MNO 班長學號  fk，

       MajorNo 專業編號 fk ),

其中MajorNo 專業編號為學號的第3，4位。

create table t_major_j524(
    mno varchar2(2),
    mname varchar2(32),
    loc varchar2(32),
    mdean varchar2(32),
    constraint pk_major_mno primary key(mno),
    constraint ck_major_mname check(loc in('主校區','南校區','新校區','鐵道校區','湘雅校區')));

create table t_stud_j524(
    sno varchar2(10),
    sname varchar2(32),
    sex varchar2(32),
    tel varchar2(32),
    email varchar2(32),
    birthday date,
    mno varchar2(10),
    majorno varchar2(2),
    constraint pk_stud_sno primary key(sno),
    constraint ck_stud_sex check(sex in('男','女','其它')),
    constraint ck_stud_email check(email like '%@%.%'),
    constraint ck_stud_birthday check(birthday>to_date('19990731','yyyymmdd'))，    
    constraint ck_stud_majorno check(majorno in substr(sno,3,2)),    
    constraint fk_stud_mno foreign key(mno) references t_stud_j524(sno),
    constraint fk_stud_majorno foreign key(majorno) references t_major_j524(mno));

3.插入樣本數據：

插入3個專業的6個班級，如：計算機科學與技術，物聯網工程，數據科學與大數據技術，每個專業不小於10個人。

------插入實驗數據：3個專業6個班共計36人---------
delete from t_stud_j524;
delete from t_major_j524;

insert into t_major_j524 values('21','數據科學與大數據技術','主校區','張三');
insert into t_major_j524 values('02','計算機科學與技術','主校區','許寧');
insert into t_major_j524 values('19','物聯網工程','主校區','李四');
--數據科學與大數據技術13名同學
insert into t_stud_j524 values('0921170114','李一','男','15390451131','liyi@163.com',to_date('20000122','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170115','李二','男','18726450331','lier@163.com',to_date('20001010','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170117','李三','男','13260450831','lisan@163.com',to_date('20001220','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170120','李四','男','18655450232','lisi@163.com',to_date('20000525','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170122','李五','女','15342450031','liwu@163.com',to_date('20000214','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170123','李六','女','18790332061','liliu@163.com',to_date('20000323','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170124','李七','男','13250450031','liqi@163.com',to_date('20000930','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170207','張一','男','18790450032','zhangyi@163.com',to_date('20001130','yyyymmdd'),'0921170207','21');
insert into t_stud_j524 values('0921170225','張二','女','15256350531','zhanger@163.com',to_date('20000722','yyyymmdd'),'0921170207','21');
insert into t_stud_j524 values('0921170226','張三','男','18796650031','zhangsan@163.com',to_date('20001023','yyyymmdd'),'0921170207','21');
insert into t_stud_j524 values('0921170227','張四','女','18390455631','zhangsi@163.com',to_date('20000504','yyyymmdd'),'0921170207','21');
insert into t_stud_j524 values('0921170209','張五','男','18790460031','zhangwu@163.com',to_date('20010130','yyyymmdd'),'0921170207','21');
insert into t_stud_j524 values('0921170228','張六','女','18592450551','zhangliu@163.com',to_date('20000101','yyyymmdd'),'0921170207','21');

--計算機科學與技術12名同學
insert into t_stud_j524 values('0902170516','王二','男','18790450032','wanger@163.com',to_date('20001130','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170520','王三','男','18790460031','wangsan@163.com',to_date('20010130','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170521','王四','男','15390451131','wangsi@163.com',to_date('20000122','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170523','杜豪','男','18726450331','duhao@163.com',to_date('20001010','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170524','宋海磊','男','13278882876','songhailei@163.com',to_date('20001220','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170525','翟樹傑','男','13278886638','zhaishujie@163.com',to_date('20000525','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170526','胡旭東','男','15342450031','huxudong@163.com',to_date('20000214','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170601','嬴政','男','18790332061','yingzheng@163.com',to_date('20000323','yyyymmdd'),'0902170601','02');
insert into t_stud_j524 values('0902170602','劉邦','男','13250450031','liubang@163.com',to_date('20000930','yyyymmdd'),'0902170601','02');
insert into t_stud_j524 values('0902170604','李廣','男','15256350531','liguang@163.com',to_date('20000722','yyyymmdd'),'0902170601','02');
insert into t_stud_j524 values('0902170605','李世民','女','18796650031','lishimin@163.com',to_date('20001023','yyyymmdd'),'0902170601','02');
insert into t_stud_j524 values('0902170625','趙匡胤','女','18796650031','zhaokuangyin@163.com',to_date('20001023','yyyymmdd'),'0902170601','02');

--物聯網工程11名同學
insert into t_stud_j524 values('0919170112','周一','女','18790450032','zhouyi@163.com',to_date('20001130','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170120','周二','男','18790460031','zhouer@163.com',to_date('20010130','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170107','周三','男','15390451131','zhousan@163.com',to_date('20000122','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170109','周四','男','18726450331','zhousi@163.com',to_date('20001010','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170110','周五','男','13260450831','zhouwu@163.com',to_date('20001220','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170115','周六','女','18655450232','zhouliu@163.com',to_date('20000525','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170214','陳一','男','15342450031','chenyi@163.com',to_date('20000214','yyyymmdd'),'0919170214','19');
insert into t_stud_j524 values('0919170215','陳二','女','18790332061','chener@163.com',to_date('20000323','yyyymmdd'),'0919170214','19');
insert into t_stud_j524 values('0919170217','陳三','女','13250450031','chensan@163.com',to_date('20000930','yyyymmdd'),'0919170214','19');
insert into t_stud_j524 values('0919170220','陳四','女','15256350531','chensi@163.com',to_date('20000722','yyyymmdd'),'0919170214','19');
insert into t_stud_j524 values('0919170225','陳五','男','18796650031','chenwu@163.com',to_date('20001023','yyyymmdd'),'0919170214','19');

 4.測試相關的完整性約束，並注意保留出錯的提示，分析出錯的原因 (建議把4放在3前面)

-----測試約束
---------t_major_j524約束
 
column mno format a3;
column mname format a32;
column loc format a10;
column mdean format a12;
column sno format a11;
column sname format a7;
column sex format a4;
column tel format a12;
column email format a32;
column birthday format a11;
column mno format a11;
column majorno format a3;
set linesize 150;
set pagesize 100;

       
--1.主鍵不為空
insert into t_major_j524(mno) values('');
--2.主鍵不能重復
insert into t_major_j524(mno) values('34');
insert into t_major_j524(mno) values('34');
delete from t_major_j524;
--3.約束：loc in('主校區','南校區','新校區','鐵道校區','湘雅校區')
insert into t_major_j524(loc) values('北校區');
--4.成功插入幾條完整數據
insert into t_major_j524 values('34','計算機科學與技術','主校區','許寧');
insert into t_major_j524 values('35','大數據','主校區','許寧');
 
select * from t_major_j524;

--t_stud_j524約束
--1.主鍵不為空
insert into t_stud_j524(sno) values('');
--2.主鍵不能重復
insert into t_stud_j524(sno) values('1234567890');
insert into t_stud_j524(sno) values('1234567890');
delete from t_stud_j524;

--3.約束：sex in('男','女','其它')
insert into t_stud_j524(sno,sex) values('1234567890','不知道');
--4.約束：email like '%@%.%'
insert into t_stud_j524(sno,email) values('1234567890','123456@789');
--5.約束：birthday>to_date('19990731','yyyymmdd')
insert into t_stud_j524(sno,birthday) values('1234567890',to_date('19951130','yyyymmdd'));
--6.約束：majorno in substr(sno,3,2)
insert into t_stud_j524(sno,majorno) values('1234567890','35');
--7.外鍵約束：foreign key(mno) references t_stud_j524(sno)
insert into t_stud_j524(sno,mno) values('1234567890','1234567891');
--8.外鍵約束：foreign key(majorno) references t_major_j524(mno)
insert into t_stud_j524(sno,majorno) values('0987654321','87');
--9.成功插入一條完整數據
insert into t_stud_j524 values('1234567890','余東','男','18790450031','ydduong@163.com',to_date('20001130','yyyymmdd'),'1234567890','34');

5.為每個學生建立相關用戶，實現權限控制，每個學生可查詢自己的信息，班長可查詢本班所有學生信息； 為每個專業負責建立用戶，每個專業負責可查詢本專業所有學生信息。

---權限管理：為學生、班長、年級長分別建立視圖並賦予相應查看權限---
set heading off
set feedback off
set echo off
set termout off
spool d:\users.txt

--刪除用戶
select 'drop user u'||sno||';' from t_stud_j524;
--新建用戶（為每個學生）
select 'create user u'||sno||' identified by p'||sno||';' from t_stud_j524;
--授予connect權利
select 'grant connect to u'||sno||';' from t_stud_j524;
--刪除學生用戶視圖
select 'drop view vi'||sno||';' from t_stud_j524;
--為每個用戶建立各自的視圖
select 'create view vi'||sno||' as select * from t_stud_j524 where sno='||sno||';' from t_stud_j524;
--為每個用戶授予查詢視圖的權利
select 'grant select on vi'||sno||' to u'||sno||';' from t_stud_j524;
--刪除班長用戶視圖
select 'drop view vi'||sno||';' from t_stud_j524 where sno=mno;
select 'drop view vib'||sno||';' from t_stud_j524 where sno=mno;
--為班長建立班長視圖
select 'create view vib'||sno||' as select * from t_stud_j524 where mno='||sno||';' from t_stud_j524 where sno=mno;
--為班長授予查詢班長視圖的權利
select 'grant select on vib'||sno||' to u'||sno||';' from t_stud_j524 where sno=mno;
--刪除年級負責人用戶視圖
select 'drop view vi'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
select 'drop view vib'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
select 'drop view viz'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
--為年級負責人創建年級視圖
select 'create view viz'||t_stud_j524.sno||' as select * from t_stud_j524 where majorno='||t_stud_j524.majorno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
--為年級負責人授予查詢年級視圖的權利
select 'grant select on viz'||t_stud_j524.sno||' to u'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
spool off
set heading on
set feedback on
set echo on
set termout on
------------------------

@d:\users.txt
 
--普通學生僅查詢自己
conn u0919170225/p0919170225
select * from u_j524.vi0919170225;
--班長可以查詢自己和班級同學
conn u0919170112/p0919170112
select * from u_j524.vib0919170112;
--年級長可以查詢自己和年同學
conn u0921170226/p0921170226
select * from u_j524.viz0921170226;


set heading off
set feedback off
set echo off
set termout off
spool d:\users.txt

 

實驗源碼

drop user u_j524 cascade;
create user u_j524 identified by p123456;
grant resource,connect,dba to u_j524;
conn u_j524/p123456

---------------建表----------------
create table t_major_j524(
    mno varchar2(2),
    mname varchar2(32),
    loc varchar2(32),
    mdean varchar2(32),
    constraint pk_major_mno primary key(mno),
    constraint ck_major_mname check(loc in('主校區','南校區','新校區','鐵道校區','湘雅校區')));

create table t_stud_j524(
    sno varchar2(10),
    sname varchar2(32),
    sex varchar2(32),
    tel varchar2(32),
    email varchar2(32),
    birthday date,
    mno varchar2(10),
    majorno varchar2(2),
    constraint pk_stud_sno primary key(sno),
    constraint ck_stud_sex check(sex in('男','女','其它')),
    constraint ck_stud_email check(email like '%@%.%'),
    constraint ck_stud_birthday check(birthday>to_date('19990731','yyyymmdd'))，    
    constraint ck_stud_majorno check(majorno in substr(sno,3,2)),    
    constraint fk_stud_mno foreign key(mno) references t_stud_j524(sno),
    constraint fk_stud_majorno foreign key(majorno) references t_major_j524(mno));

-----測試約束
---------t_major_j524約束
 
column mno format a3;
column mname format a32;
column loc format a10;
column mdean format a12;
column sno format a11;
column sname format a7;
column sex format a4;
column tel format a12;
column email format a32;
column birthday format a11;
column mno format a11;
column majorno format a3;
set linesize 150;
set pagesize 100;

       
--1.主鍵不為空
insert into t_major_j524(mno) values('');
--2.主鍵不能重復
insert into t_major_j524(mno) values('34');
insert into t_major_j524(mno) values('34');
delete from t_major_j524;
--3.約束：loc in('主校區','南校區','新校區','鐵道校區','湘雅校區')
insert into t_major_j524(loc) values('北校區');
--4.成功插入幾條完整數據
insert into t_major_j524 values('34','計算機科學與技術','主校區','許寧');
insert into t_major_j524 values('35','大數據','主校區','許寧');
 
select * from t_major_j524;

--t_stud_j524約束
--1.主鍵不為空
insert into t_stud_j524(sno) values('');
--2.主鍵不能重復
insert into t_stud_j524(sno) values('1234567890');
insert into t_stud_j524(sno) values('1234567890');
delete from t_stud_j524;

--3.約束：sex in('男','女','其它')
insert into t_stud_j524(sno,sex) values('1234567890','不知道');
--4.約束：email like '%@%.%'
insert into t_stud_j524(sno,email) values('1234567890','123456@789');
--5.約束：birthday>to_date('19990731','yyyymmdd')
insert into t_stud_j524(sno,birthday) values('1234567890',to_date('19951130','yyyymmdd'));
--6.約束：majorno in substr(sno,3,2)
insert into t_stud_j524(sno,majorno) values('1234567890','35');
--7.外鍵約束：foreign key(mno) references t_stud_j524(sno)
insert into t_stud_j524(sno,mno) values('1234567890','1234567891');
--8.外鍵約束：foreign key(majorno) references t_major_j524(mno)
insert into t_stud_j524(sno,majorno) values('0987654321','87');
--9.成功插入一條完整數據
insert into t_stud_j524 values('1234567890','余東','男','18790450031','ydduong@163.com',to_date('20001130','yyyymmdd'),'1234567890','34');
 


------插入實驗數據：3個專業6個班共計36人---------
delete from t_stud_j524;
delete from t_major_j524;

insert into t_major_j524 values('21','數據科學與大數據技術','主校區','張三');
insert into t_major_j524 values('02','計算機科學與技術','主校區','許寧');
insert into t_major_j524 values('19','物聯網工程','主校區','李四');

--數據科學與大數據技術13名同學
insert into t_stud_j524 values('0921170114','李一','男','15390451131','liyi@163.com',to_date('20000122','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170115','李二','男','18726450331','lier@163.com',to_date('20001010','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170117','李三','男','13260450831','lisan@163.com',to_date('20001220','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170120','李四','男','18655450232','lisi@163.com',to_date('20000525','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170122','李五','女','15342450031','liwu@163.com',to_date('20000214','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170123','李六','女','18790332061','liliu@163.com',to_date('20000323','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170124','李七','男','13250450031','liqi@163.com',to_date('20000930','yyyymmdd'),'0921170114','21');
insert into t_stud_j524 values('0921170207','張一','男','18790450032','zhangyi@163.com',to_date('20001130','yyyymmdd'),'0921170207','21');
insert into t_stud_j524 values('0921170225','張二','女','15256350531','zhanger@163.com',to_date('20000722','yyyymmdd'),'0921170207','21');
insert into t_stud_j524 values('0921170226','張三','男','18796650031','zhangsan@163.com',to_date('20001023','yyyymmdd'),'0921170207','21');
insert into t_stud_j524 values('0921170227','張四','女','18390455631','zhangsi@163.com',to_date('20000504','yyyymmdd'),'0921170207','21');
insert into t_stud_j524 values('0921170209','張五','男','18790460031','zhangwu@163.com',to_date('20010130','yyyymmdd'),'0921170207','21');
insert into t_stud_j524 values('0921170228','張六','女','18592450551','zhangliu@163.com',to_date('20000101','yyyymmdd'),'0921170207','21');

--計算機科學與技術12名同學
insert into t_stud_j524 values('0902170516','王二','男','18790450032','wanger@163.com',to_date('20001130','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170520','王三','男','18790460031','wangsan@163.com',to_date('20010130','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170521','王四','男','15390451131','wangsi@163.com',to_date('20000122','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170523','杜豪','男','18726450331','duhao@163.com',to_date('20001010','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170524','宋海磊','男','13278882876','songhailei@163.com',to_date('20001220','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170525','翟樹傑','男','13278886638','zhaishujie@163.com',to_date('20000525','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170526','胡旭東','男','15342450031','huxudong@163.com',to_date('20000214','yyyymmdd'),'0902170516','02');
insert into t_stud_j524 values('0902170601','嬴政','男','18790332061','yingzheng@163.com',to_date('20000323','yyyymmdd'),'0902170601','02');
insert into t_stud_j524 values('0902170602','劉邦','男','13250450031','liubang@163.com',to_date('20000930','yyyymmdd'),'0902170601','02');
insert into t_stud_j524 values('0902170604','李廣','男','15256350531','liguang@163.com',to_date('20000722','yyyymmdd'),'0902170601','02');
insert into t_stud_j524 values('0902170605','李世民','女','18796650031','lishimin@163.com',to_date('20001023','yyyymmdd'),'0902170601','02');
insert into t_stud_j524 values('0902170625','趙匡胤','女','18796650031','zhaokuangyin@163.com',to_date('20001023','yyyymmdd'),'0902170601','02');

--物聯網工程11名同學
insert into t_stud_j524 values('0919170112','周一','女','18790450032','zhouyi@163.com',to_date('20001130','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170120','周二','男','18790460031','zhouer@163.com',to_date('20010130','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170107','周三','男','15390451131','zhousan@163.com',to_date('20000122','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170109','周四','男','18726450331','zhousi@163.com',to_date('20001010','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170110','周五','男','13260450831','zhouwu@163.com',to_date('20001220','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170115','周六','女','18655450232','zhouliu@163.com',to_date('20000525','yyyymmdd'),'0919170112','19');
insert into t_stud_j524 values('0919170214','陳一','男','15342450031','chenyi@163.com',to_date('20000214','yyyymmdd'),'0919170214','19');
insert into t_stud_j524 values('0919170215','陳二','女','18790332061','chener@163.com',to_date('20000323','yyyymmdd'),'0919170214','19');
insert into t_stud_j524 values('0919170217','陳三','女','13250450031','chensan@163.com',to_date('20000930','yyyymmdd'),'0919170214','19');
insert into t_stud_j524 values('0919170220','陳四','女','15256350531','chensi@163.com',to_date('20000722','yyyymmdd'),'0919170214','19');
insert into t_stud_j524 values('0919170225','陳五','男','18796650031','chenwu@163.com',to_date('20001023','yyyymmdd'),'0919170214','19');

---權限管理：為學生、班長、年級長分別建立視圖並賦予相應查看權限---
set heading off
set feedback off
set echo off
set termout off
spool d:\users.txt

--刪除用戶
select 'drop user u'||sno||';' from t_stud_j524;
--新建用戶（為每個學生）
select 'create user u'||sno||' identified by p'||sno||';' from t_stud_j524;
--授予connect權利
select 'grant connect to u'||sno||';' from t_stud_j524;
--刪除學生用戶視圖
select 'drop view vi'||sno||';' from t_stud_j524;
--為每個用戶建立各自的視圖
select 'create view vi'||sno||' as select * from t_stud_j524 where sno='||sno||';' from t_stud_j524;
--為每個用戶授予查詢視圖的權利
select 'grant select on vi'||sno||' to u'||sno||';' from t_stud_j524;
--刪除班長用戶視圖
select 'drop view vi'||sno||';' from t_stud_j524 where sno=mno;
select 'drop view vib'||sno||';' from t_stud_j524 where sno=mno;
--為班長建立班長視圖
select 'create view vib'||sno||' as select * from t_stud_j524 where mno='||sno||';' from t_stud_j524 where sno=mno;
--為班長授予查詢班長視圖的權利
select 'grant select on vib'||sno||' to u'||sno||';' from t_stud_j524 where sno=mno;
--刪除年級負責人用戶視圖
select 'drop view vi'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
select 'drop view vib'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
select 'drop view viz'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
--為年級負責人創建年級視圖
select 'create view viz'||t_stud_j524.sno||' as select * from t_stud_j524 where majorno='||t_stud_j524.majorno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
--為年級負責人授予查詢年級視圖的權利
select 'grant select on viz'||t_stud_j524.sno||' to u'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;

/*
select 'drop user u'||sno||';' from t_stud_j524;
select 'create user u'||sno||' identified by p'||sno||';' from t_stud_j524;
select 'grant connect to u'||sno||';' from t_stud_j524;
select 'drop view vi'||sno||';' from t_stud_j524;
select 'create view vi'||sno||' as select * from t_stud_j524 where sno='||sno||';' from t_stud_j524;
select 'grant select on vi'||sno||' to u'||sno||';' from t_stud_j524;

select 'drop view vi'||sno||';' from t_stud_j524 where sno=mno;
select 'drop view vib'||sno||';' from t_stud_j524 where sno=mno;

select 'create view vib'||sno||' as select * from t_stud_j524 where mno='||sno||';' from t_stud_j524 where sno=mno;

select 'grant select on vib'||sno||' to u'||sno||';' from t_stud_j524 where sno=mno;

select 'drop view vi'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
select 'drop view vib'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;
select 'drop view viz'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;

select 'create view viz'||t_stud_j524.sno||' as select * from t_stud_j524 where majorno='||t_stud_j524.majorno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;

select 'grant select on viz'||t_stud_j524.sno||' to u'||t_stud_j524.sno||';' from t_stud_j524,t_major_j524 where t_stud_j524.majorno=t_major_j524.mno and t_stud_j524.sname=t_major_j524.mdean;

*/




spool off
set heading on
set feedback on
set echo on
set termout on
------------------------

@d:\users.txt
 
--普通學生僅查詢自己
conn u0919170225/p0919170225
select * from u_j524.vi0919170225;
--班長可以查詢自己和班級同學
conn u0919170112/p0919170112
select * from u_j524.vib0919170112;
--年級長可以查詢自己和年同學
conn u0921170226/p0921170226
select * from u_j524.viz0921170226;


set heading off
set feedback off
set echo off
set termout off
spool d:\users.txt

--刪除用戶
select 'drop user u'||sno||' cascade;' from t_stud_j524;
spool off
set heading on
set feedback on
set echo on
set termout on


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