Oracle User Management

Nov 9, 20200 likes532 views

I will be sharing simple SQL queries that will help you manage Oracle database users. Article full link is here: https://www.support.dbagenesis.com/post/oracle-user-management

User Management
Queries
CHECK NUMBER OF USER ACCOUNTS IN DATABASE
CHECK USERNAME YOU ARE CONNECTED WITH

HOW TO LOCK/UNLOCK USER ACCOUNTS
HOW TO CREATE NEW USER IN DATABASE
CHANGE USER PASSWORD

HOW TO CHECK DATABASE DEFAULT TABLESPACE
GRANT/REVOKE USER PERMISSIONS
Note: When you create a new user, you directly cannot
connect to the sqlplus because the new user lacks
CREATE SESSION privilage

GRANT QUOTA ON A TABLESPACE TO USER
Note: Allocating quota doesn’t represent reserving the
space. If 2 or more users are sharing a tablespace, quota
will filled up in first come first serve basis

Note: The objects created in the old tablespace remain
unchanged even after changing a default tablespace for a
user
TO CHANGE DEFAULT TABLESPACE OF USER
DROP A USER

User Permission Queries
To check system privileges for a user
To check object level privileges

To check roles assigned to a user
To check permissions assigned to role

User Role Management
Providing multiple privileges to a user is time consuming. For example:
There are many sales clearks in office and they must be able to perform:
INSERT into the DEPT table
UPDATE the EMP table
DELETE from the BONUS table

Grant the role to the users:
Note: Never grant sysdba role to any other user until
specified by database architect.

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Oracle User Management

1. ORACLE USER MANAGEMENT

2. User Management Queries CHECK NUMBER OF USER ACCOUNTS IN DATABASE CHECK USERNAME YOU ARE CONNECTED WITH

3. HOW TO LOCK/UNLOCK USER ACCOUNTS HOW TO CREATE NEW USER IN DATABASE CHANGE USER PASSWORD

4. HOW TO CHECK DATABASE DEFAULT TABLESPACE GRANT/REVOKE USER PERMISSIONS Note: When you create a new user, you directly cannot connect to the sqlplus because the new user lacks CREATE SESSION privilage

5. GRANT QUOTA ON A TABLESPACE TO USER Note: Allocating quota doesn’t represent reserving the space. If 2 or more users are sharing a tablespace, quota will filled up in first come first serve basis

6. Note: The objects created in the old tablespace remain unchanged even after changing a default tablespace for a user TO CHANGE DEFAULT TABLESPACE OF USER DROP A USER

7. User Permission Queries To check system privileges for a user To check object level privileges

8. To check roles assigned to a user To check permissions assigned to role

9. User Role Management Providing multiple privileges to a user is time consuming. For example: There are many sales clearks in office and they must be able to perform: INSERT into the DEPT table UPDATE the EMP table DELETE from the BONUS table

10. Grant privileges to the role:

11. Grant the role to the users: Note: Never grant sysdba role to any other user until specified by database architect.

12. Courses | Projects | Bootcamps

Oracle User Management

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