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User, role and permission related operations of Oracle

2025-01-17 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >

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Shulou(Shulou.com)06/01 Report--

1. Create a user

Create user KD identified by 123456

2. Grant permissions to connect to the database

Grant connect to KD

3. Authorize the emp table of Scott users to KD to query.

Grant select on scott.emp to KD;grant create table to KD

4. Reclaim permissions

Revoke select on scott.emp from KD

5. Authorization to add, delete and modify tables

Grant select,inset,delete,update on scott.emp to KD;revoke select,inset,delete,update on scott.emp from KD

6. Delete a user

SQL error: ORA-01940: unable to delete the currently connected user

Execute after exiting a connected KD user

Drop user KD

Will prompt: error: ORA-01922: CASCADE must be specified to delete 'KD'

Drop user KD cascade

7. View the permissions of the current user

Select * from session_privs

8. View the roles owned by the current user

Select * from user_role_privs

9. View all permissions of the role

Select * from dba_sys_privs;select * from dba_sys_privs where grantee='CONNECT';--create sessionselect * from dba_sys_privs where grantee='RESOURCE';/*create trigger create sequence create type create procedure create cluster create operator create indextype create table*/select * from dba_sys_privs where grantee='DBA';-- has the highest permissions, all permissions.

Create a developer and authorize:

Create user CURRY identified by 123456 * create connet,resource to CURRY

10. User unlock

Alter user HR account unlock

11. Change the user's password

Alter user HR identified by 123456

The above is the pure Oracle users, roles and permissions-related operations introduced to you by the editor. I hope it will be helpful to you. If you have any questions, please leave me a message and the editor will reply to you in time. Thank you very much for your support to the website!

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