1. Create a View that allows students to view their own informatio.docx

1. Create a View that allows students to view their own
information in the Student, Offering, and Enrollment tables.
· Note: This should be one view that covers all three tables, but
allows students to view their own information only.
0. Grant the necessary authority so that students can use this
view.
1. Create a View that allows Juniors and Seniors the right to
change their major (but does not allow anyone else too).
1. Grant the necessary authority so that Juniors and Seniors can
use this view.
1. User Martin, the Dean, owns the faculty table and is the only
user that knows there is a bonus column in the table. The rest
of the users don’t know there is a bonus column.
2. Show how user Martin can manipulate the faculty table so the
bonus data is invisible except to him (generate the SQL and
execute it)
2. Show how he can update the bonus information (generate the
SQL and execute it).
2. And show he can review it (select bonus information in
combination with other data, e.g., select name, bonus from
employee).

1. The Dean has announced the bonuses. A notice has gone to
each employee that will receive a bonus. The existence of
bonus column is now known so a different way to restrict who
can view the data is needed.
3. Generate the code that will enforce the new rule for access to
the bonus information: bonus information can be viewed only
by the person receiving the bonus (and the Dean).
3. Show the Dean is still the only one who can update the bonus
data. Show how to achieve this result. [Note: The solution is
not a view with a Where clause of User = Name clause or a
VPD].
CREATE USER ABLE IDENTIFIED BY a;
CREATE USER BAKER IDENTIFIED BY b;
CREATE USER CHARLES IDENTIFIED BY c;
CREATE USER DRAKE IDENTIFIED BY d;
CREATE USER ELLIOT IDENTIFIED BY e;
CREATE USER LOONEY IDENTIFIED BY f;
CREATE USER MARTIN IDENTIFIED BY g;
CREATE USER MILLS IDENTIFIED BY h;
CREATE USER SEAVER IDENTIFIED BY i;
GRANT CREATE SESSION TO ABLE;

GRANT CREATE SESSION TO BAKER;
GRANT CREATE SESSION TO CHARLES;
GRANT CREATE SESSION TO DRAKE;
GRANT CREATE SESSION TO ELLIOT;
GRANT CREATE SESSION TO MARTIN;
GRANT CREATE SESSION TO SEAVER;
GRANT CREATE SESSION TO LOONEY;
GRANT CREATE SESSION TO MILLS;
/* CREATE TABLES */
CREATE TABLE ENROLLMENT (
OFFERING_NUM NUMERIC(4) NOT NULL,
STUDENT_ID NUMERIC(3) NOT NULL
);
CREATE TABLE FACULTY (
FACULTY_ID NUMERIC(4) NOT NULL,

NAME VARCHAR2(55) NOT NULL,
ORGCD VARCHAR2(4) NOT NULL,
ADDRESS VARCHAR2(55) NOT NULL,
CC NUMERIC(16) NOT NULL,
SALARY NUMERIC(12) NOT NULL,
BONUS NUMERIC(12) NOT NULL,
RANK VARCHAR2(55) NOT NULL
);
CREATE TABLE OFFERING (
OFFERING_NUM NUMERIC(4) NOT NULL,
COURSE_NUM VARCHAR2(16) NOT NULL,
FACULTY_ID NUMERIC(4) NOT NULL,
TERM VARCHAR2(16) NOT NULL,
YEAR NUMERIC(4) NOT NULL,
TIME VARCHAR2(12) NOT NULL
);

CREATE TABLE STUDENT (
STUDENT_ID NUMERIC(3) NOT NULL,
NAME VARCHAR2(24) NOT NULL,
MAJOR VARCHAR2(55) NOT NULL,
STATUS VARCHAR2(4) NOT NULL,
ADDRESS VARCHAR2(55) NOT NULL,
GPA DECIMAL(4,2) NOT NULL
);
/* INSERT DATE INTO TABLES */
Insert into ENROLLMENT (OFFERING_NUM,STUDENT_ID)
values ('1111','100');
values ('1233','500');
values ('2222','300');
values ('3333','400');
Insert into FACULTY

(FACULTY_ID,NAME,ORGCD,ADDRESS,CC,SALARY,BON
US,RANK) values ('0980','MARTIN','IM','11
MAIN','4560123450001234','250000','250000','DEAN');
Insert into FACULTY
US,RANK) values ('5430','SEAVER','IS','12
SOUTH','4560123450002345','180000','90000','PROFESSOR');
Insert into FACULTY
US,RANK) values ('7650','LOONEY','IT','14
NORTH','4560123450003456','160000','80000','INSTRUCTOR')
;
Insert into FACULTY
US,RANK) values ('9870','MILLS','SA','16
EAST','4560123450004567','90000','45000','LECTURER');
Insert into OFFERING
(OFFERING_NUM,COURSE_NUM,FACULTY_ID,TERM,YEA
R,TIME) values ('1111','IS320','5430','FALL','2012','10 AM');
R,TIME) values ('1233','IS320','0980','FALL','2012','11 AM');
R,TIME) values ('2222','IS460','7650','SPRING','2013','10
AM');

R,TIME) values ('3333','IT480','5430','SPRING','2013','11
AM');
Insert into STUDENT
(STUDENT_ID,NAME,MAJOR,STATUS,ADDRESS,GPA)
values ('100','ABLE','HISTORY','SR','1 UTAH','3.00');
Insert into STUDENT
values ('200','BAKER','ACCOUNTING','JR','2 IOWA','2.70');
Insert into STUDENT
values ('300','CHARLES','MATH','SR','3 MAINE','3.50');
Insert into STUDENT
values ('400','DRAKE','COMPUTER SCIENCE','FR','4
IDAHO','2.80');
Insert into STUDENT
values ('500','ELLIOT','COMPUTER SCIENCE','SM','5
NEVADA','3.25');
/* CREATE CONSTRAINTS */
ALTER TABLE FACULTY ADD CONSTRAINT faculty_pk
PRIMARY KEY ( FACULTY_ID );

ALTER TABLE STUDENT ADD CONSTRAINT student_pk
PRIMARY KEY ( STUDENT_ID );
ALTER TABLE OFFERING ADD CONSTRAINT offering_pk
PRIMARY KEY ( OFFERING_NUM );
ALTER TABLE OFFERING
ADD CONSTRAINT offering_fk FOREIGN KEY (
FACULTY_ID )
REFERENCES FACULTY ( FACULTY_ID );
ALTER TABLE ENROLLMENT
ADD CONSTRAINT enrolla_fk FOREIGN KEY (
STUDENT_ID )
REFERENCES STUDENT ( STUDENT_ID );
ALTER TABLE ENROLLMENT
ADD CONSTRAINT enrollb_fk FOREIGN KEY (
OFFERING_NUM )

REFERENCES OFFERING ( OFFERING_NUM );
/* CREATE ROLES */
CREATE ROLE R_STUDENT;
CREATE ROLE R_FACULTY;
/* GRANT PRIVILEGES */
GRANT SELECT ON STUDENT TO R_STUDENT;
GRANT SELECT ON FACULTY TO R_FACULTY;
GRANT R_STUDENT TO
ABLE,BAKER,CHARLES,DRAKE,ELLIOT;
GRANT R_FACULTY TO
MARTIN,SEAVER,LOONEY,MILLS;
/* F_STUDENT_VIEW CREATION */
CREATE VIEW F_STUDENT_VIEW AS
SELECT STUDENT_ID, NAME, MAJOR, STATUS
FROM STUDENT;

/* F_STUDENT_VIEW GRANT TO FACULTY */
GRANT SELECT ON F_STUDENT_VIEW TO R_FACULTY;
/* S_STUDENT_UPDATE_ADDRESS CREATION */
CREATE VIEW S_STUDENT_UPDATE_ADDRESS AS
SELECT ADDRESS
FROM STUDENT
WHERE NAME = USER;
/* S_STUDENT_UPDATE_ADDRESS GRANT TO STUDENT
*/
GRANT SELECT, UPDATE ON
S_STUDENT_UPDATE_ADDRESS TO R_STUDENT;
/* REVOKE GRANTS FROM PROBLEM 2 */
REVOKE SELECT ON STUDENT FROM R_STUDENT;
REVOKE SELECT ON FACULTY FROM R_FACULTY;
REVOKE R_STUDENT FROM
ABLE,BAKER,CHARLES,DRAKE,ELLIOT;
REVOKE R_FACULTY FROM

MARTIN,SEAVER,LOONEY,MILLS;
/* OWN_STUDENT_RECORD VIEW CREATION */
CREATE VIEW OWN_STUDENT_RECORD AS
SELECT STUDENT_ID, NAME, MAJOR, STATUS,
ADDRESS, GPA
FROM STUDENT
WHERE NAME = USER;
/* OWN_FACULTY_RECORD VIEW CREATION */
CREATE VIEW OWN_FACULTY_RECORD AS
SELECT FACULTY_ID, NAME, ORGCD, ADDRESS, CC,
SALARY, BONUS, RANK
FROM FACULTY
WHERE NAME = USER;
/* GRANT ROLE FOR THE NEW VIEWS */
GRANT SELECT ON OWN_STUDENT_RECORD TO
R_STUDENT;
GRANT SELECT ON OWN_FACULTY_RECORD TO

R_FACULTY;
/* UPDATE_FACULTY_ADDRESS VIEW CREATION */
CREATE VIEW UPDATE_FACULTY_ADDRESS AS
SELECT ADDRESS
FROM FACULTY
WHERE NAME = USER;
/* GRANT SELECT AND UPDATE FOR ADDRESS ON VIEW
*/
GRANT SELECT, UPDATE ON
UPDATE_FACULTY_ADDRESS TO R_FACULTY;
--For the Lab example of decode
--
--Decode allows a user to see their own values for the column
involved
SQL> connect michael/[email protected];

Connected.
SQL> show user
USER is "MICHAEL"
SQL> drop table sal;
Table dropped.
SQL> create table sal (empno number, hours_entered number,
name varchar(10), salary number);
Table created.
SQL> insert into sal values(001, 8, 'MIKE', 195999);
1 row created.
SQL> insert into sal values (002, 7, 'JEFF', 178999);

1 row created.
SQL> select * from sal;
EMPNO HOURS_ENTERED NAME SALARY
---------- ------------- ---------- ----------
1 8 MIKE 195999
2 7 JEFF 178999
SQL> CREATE OR REPLACE VIEW my_salary
2 AS
3 SELECT empno,
4 hours_entered,
5 name,
6 DECODE (UPPER (name),
7 USER, salary,
8 NULL) salary
9 FROM sal;

View created.
--Note The view my_salary returns a value for salary for the
user only
--The current user is Michael so Michael gets no Salary
information returned
SQL> select * from my_salary;
---------- ------------- ---------- ----------
1 8 MIKE
2 7 JEFF
SQL> show user;
USER is "MICHAEL"
---Note the user Mike already exists (if not; create the user
Mike)

SQL> grant select on my_salary to mike;
Grant succeeded.
SQL> connect mike/[email protected];
Connected.
--Mike sees his own salary but not Jeff
SQL> select * from michael.my_salary;
---------- ------------- ---------- ----------
1 8 MIKE 195999
2 7 JEFF
SQL> show user

USER is "MIKE"
SQL> create user jeff identified by j;
User created.
SQL> grant create session, dba to jeff;
Grant succeeded.
Connected.
SQL> grant select on michael.my_salary to jeff;
Grant succeeded.
SQL> connect jeff/[email protected];
Connected.

SQL> select * from michael.my_salary;
---------- ------------- ---------- ----------
1 8 MIKE
2 7 JEFF 178999
SQL> show user
USER is "JEFF"
--For class use--invisible example
Connected.
SQL> show user;
USER is "MICHAEL"
SQL> drop table emp_h;
Table dropped.

--Note Title is visible and Salary is invisible
SQL> CREATE TABLE EMP_H (
2 EMP_ID INTEGER CONSTRAINT EMP_H PRIMARY
KEY,
3 MANAGER_ID INTEGER, FIRST_NAME VARCHAR2(10)
NOT NULL,
4 LAST_NAME VARCHAR2(10) NOT NULL, TITLE
VARCHAR2(20) VISIBLE,
5 SALARY NUMBER(6, 0) INVISIBLE
6 );
Table created.
SQL>
--Note: because of the invisible column this format of insert
must be used (listing all columns)
SQL> insert into emp_h (
2 EMP_ID, MANAGER_ID, FIRST_NAME, LAST_NAME,
title, salary
3 ) values (

4 1, 1, 'Jason', 'Price', 'CEO', 250000
5 );
1 row created.
SQL>
--Notice Salary does not show as a column in the query
SQL> select * from emp_h;
EMP_ID MANAGER_ID FIRST_NAME LAST_NAME
TITLE
---------- ---------- ---------- ---------- --------------------
1 1 Jason Price CEO
SQL>
--Notice that if you know there is a salary column and where it
is (last column)
--you can get the value for salary using this format of the select
SQL> select EMP_ID, MANAGER_ID, FIRST_NAME,
LAST_NAME, title, salary from emp_h;

TITLE SALARY
---------- ---------- ---------- ---------- -------------------- ----------
1 1 Jason Price CEO 250000
SQL>
--Notice salary does not show up in the describe
SQL> describe emp_h;
Name Null? Type
----------------------------------------- -------- -----------------------
-----
EMP_ID NOT NULL NUMBER(38)
MANAGER_ID NUMBER(38)
FIRST_NAME NOT NULL
VARCHAR2(10)
LAST_NAME NOT NULL
VARCHAR2(10)
TITLE VARCHAR2(20)

TITLE
---------- ---------- ---------- ---------- --------------------
1 1 Jason Price CEO
--Example if we make title invisible and salary visible
SQL> alter table emp_h modify (
2 title invisible,
3 salary visible
4 );
Table altered.
SQL>

SALARY
---------- ---------- ---------- ---------- ----------
1 1 Jason Price 250000
TITLE SALARY
---------- ---------- ---------- ---------- -------------------- ----------
SQL>
--and back the way it was
SQL> alter table emp_h modify (
2 title visible,
3 salary invisible
4 );

Table altered.
SQL>
SQL>
TITLE
---------- ---------- ---------- ---------- --------------------
1 1 Jason Price CEO
TITLE SALARY
---------- ---------- ---------- ---------- -------------------- ----------

1. Create a View that allows students to view their own informatio.docx

More Related Content

Similar to 1. Create a View that allows students to view their own informatio.docx (20)

More from keturahhazelhurst (20)

Recently uploaded (20)

1. Create a View that allows students to view their own informatio.docx