This is seminar report on Oracle.

1. JAIPUR ENGINEERING COLLEGE, KUKAS, JAIPUR
DEPARTMENT OF Computer Science
SESSION 2011-2012
SEMINAR ON ORACLE
PRESENTED TO :
CS DEPARTMENT
PRESENTED BY :
Mayank Garg
CS08057
B.TECH IV Year / VII Sem

2. ORACLE
THE INFORMATION COMPANY

3. ORACLE : COMPANY PROFILE
Oracle Corporation is the world's second largest
independent software company.
 Oracle is the first software company to develop
and deploy 100 percent internet-enabled
enterprise software.
 Oracle's relational database was the world's first
to support the Structured Query Language, now
an industry standard.
 Oracle spends nearly 13% of their revenues for
research and development.


4. CONTINUE…
Today, the Oracle DBMS is supported on
over 80 different operating environments,
ranging from IBM mainframes and DEC VAX
minicomputers, to UNIX-based
minicomputers and Windows NT platforms.
 All 10 of the world's largest Web sites- from
Amazon.com to Yahoo! - use Oracle.
 65% of the Fortune 100 use Oracle for ebusiness


5. Controlling User Access
Database
administrator
Username and password
Privileges
Users

6. Privileges
• Database security:
– System security
– Data security
• System privileges: Gaining access to
the database
• Object privileges: Manipulating the
content of the database objects
• Schemas: Collections of objects, such
as tables, views, and sequences

7. System Privileges
• More than 100 privileges are
available.
• The database administrator has highlevel system privileges for tasks such
as:
– Creating new users
– Removing users
– Removing tables
– Backing up tables

8. Creating Users
The DBA creates users by using the
CREATE USER statement.
CREATE USER user
IDENTIFIED BY
password;
CREATE USER scott
IDENTIFIED BY
tiger;
User created.

9. User System Privileges
• Once a user is created, the DBA can
grant specific system privileges to a
GRANT privilege [, privilege...]
user.
TO user [, user| role, PUBLIC...];
• An application developer, for
example, may have the following
system privileges:
–
–
–
–
–
CREATE
CREATE
CREATE
CREATE
CREATE
SESSION
TABLE
SEQUENCE
VIEW
PROCEDURE

10. Granting System Privileges
The DBA can grant a user specific
system privileges.
GRANT
create session, create table,
create sequence, create view
TO
scott;
Grant succeeded.

11. What is a Role?
Users
Manager
Privileges
Allocating privileges
without a role
Allocating privileges
with a role

12. Creating and Granting Privileges to a Role
• Create a role
CREATE ROLE manager;
Role created.
• Grant privileges to a role
GRANT create table, create view
TO manager;
Grant succeeded.
• Grant a role to users
GRANT manager TO TRILOK, VARIS, ROHIT ;
Grant succeeded.

13. Changing Your Password
• The DBA creates your user account
and initializes your password.
• You can change your password by
using the ALTER USER statement.
ALTER USER scott
IDENTIFIED BY lion;
User altered.

14. Object Privileges
Object
Privilege
ALTER
DELETE
EXECUTE
INDEX
INSERT
REFERENCES
SELECT
UPDATE
Table
View
Sequence
Procedure

15. Object Privileges
• Object privileges vary from object to
object.
• An owner has all the privileges on the
object.
• An owner can give specific privileges
on that owner’s object.
GRANT
ON
TO
[WITH GRANT
object_priv [(columns)]
object
{user|role|PUBLIC}
OPTION];

16. Granting Object Privileges
• Grant query privileges on the
EMPLOYEES table.
GRANT select
ON
employees
TO
sue, rich;
Grant succeeded.
• Grant privileges to update specific
columns to users and roles.
GRANT update (department_name, location_id)
ON
departments
TO
scott, manager;
Grant succeeded.

17. Using the WITH GRANT OPTION and
PUBLIC Keywords
• Give a user authority to pass along
privileges.
GRANT select, insert
ON
departments
TO
scott
WITH
GRANT OPTION;
Grant succeeded.
• Allow all users on the system to query
data from Alice’s DEPARTMENTS
GRANT select
ON table.
alice.departments
TO
PUBLIC;
Grant succeeded.

18. How to Revoke Object Privileges
• You use the REVOKE statement to
revoke privileges granted to other
users.
• Privileges granted to others through
the WITH GRANT OPTION clause are
REVOKE {privilege [, privilege...]|ALL}
also revoked.
ON
object
FROM
{user[, user...]|role|PUBLIC}
[CASCADE CONSTRAINTS];

19. Revoking Object Privileges
As user Alice, revoke the SELECT and
INSERT privileges given to user Scott
on the DEPARTMENTS table.
REVOKE select, insert
ON
departments
FROM
scott;
Revoke succeeded.

20. Database Links
A database link connection allows local
users to access data on a remote
database.
Local
Remote
EMP Table
SELECT * FROM
emp@HQ_ACME.COM;
HQ_ACME.COM
database

21. Database Links
• Create the database link.
CREATE PUBLIC DATABASE LINK hq.acme.com
USING 'sales';
Database link created.
• Write SQL statements that use the
database link.
SELECT *
FROM emp@HQ.ACME.COM;

22. CREDITS
•
•
•
•
Website : http://www.oracle.com
http://www.wikepedia.com
Oracle Documentation
My own knowledge and experience
using Oracle

24. QUESTIONS
ANSWERS