Oracle User Management
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The document provides instructions for managing user accounts in Oracle, including how to check user account details, lock/unlock accounts, create new users, and manage user permissions and roles. It emphasizes the importance of granting appropriate privileges, particularly in a multi-user environment, and notes best practices regarding the sysdba role. Additionally, it discusses the consequences of changing a user's default tablespace.
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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.
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