Oracle连接和用户、权限-12c
ORACLE 12C使用
orcl数据库服务器连接字符串
启动和关闭[12c 有误]
C:\Users\***>sqlplus /nolog
SQL*Plus: Release 12.1.0.1.0 Production on 星期日 3月 15 12:56:57 2015
Copyright (c) 1982, 2013, Oracle. All rights reserved.
SQL>
启动oracle：
SQL> startup open;
关闭oracle：
SQL> shutdown immediate;关于权限和用户的创建、锁定、修改、赋予和回收权限等权限，必须在sysdba连接身份下执行：
SQL> conn system/******@orcl as system;
Connected to Oracle Database 12c Enterprise Edition Release 12.1.0.1.0
Connected as system@orcl
或者
SQL> conn sys/******@orcl as sysdba;
Connected to Oracle Database 12c Enterprise Edition Release 12.1.0.1.0
Connected as sys@orcl AS SYSDBA注：as system不加可以，测试用。
查看Oracle数据库所有用户(sysdba)：
SQL> SELECT * FROM DBA_USERS;
------------------------------
....
37 rows selected查看你能管理的所有用户：
SQL> SELECT * FORM ALL_USERS;查看当前用户信息：
SQL> SELECT * FROM USER_USERS;创建用户[12c下c##开头创建]：
SQL> create user c##sharefile identified by c##sharefile;
User created删除用户：
SQL> drop user c##sharefile cascade;
User dropped
解锁或者锁定[lock]用户:
SQL> alter user c##sharefile account unlock;
User altered创建并解锁：
SQL> create user c##tskk identified by c##tskk1 account unlock;
User created修改用户密码:
SQL> alter user c##tskk identified by c##tskk;
User altered
用户授权：
连接权限：
SQL> grant connect to c##sharefile;
Grant succeeded增删改查权限：
SQL> grant resource to c##sharefile;
Grant succeeded一次赋权：
SQL> grant connect,resource to c##sharefile;
Grant succeeded回收用户权限：
SQL> revoke connect from c##sharefile;
Revoke succeeded
SQL> revoke resource from c##sharefile;
Revoke succeeded
SQL> revoke connect,resource from c##sharefile;
Revoke succeeded登录数据库：
SQL> conn c##tskk/c##tskk@orcl as normal;
Connected to Oracle Database 12c Enterprise Edition Release 12.1.0.1.0
Connected as c##tskk@orcl查看当前登陆的用户名：
SQL> select user from dual;
USER
------------------------------
C##TSKK
或者 [太长部分省略]USERNAME USER_ID ACCOUNT_STATUS
-------------------------------------------------------------------------------- ---------- --------------------------------
C##TSKK 103 OPEN 查看当前用户拥有的角色和权限[空格已删除]：
SQL> select * from user_role_privs;
USERNAME GRANTED_ROLE ADMIN_OPTION DEFAULT_ROLE OS_GRANTED COMMON
----------------------- ------------------ ------------ ------------ ---------- ------
C##SHAREFILE CONNECT NO YES NO NO
C##SHAREFILE RESOURCE NO YES NO NO或者
SQL> select * from session_privs;
PRIVILEGE
----------------------------------------
CREATE SESSION
CREATE TABLE
CREATE CLUSTER
CREATE SEQUENCE
CREATE PROCEDURE
CREATE TRIGGER
CREATE TYPE
CREATE OPERATOR
CREATE INDEXTYPE
SET CONTAINER
10 rows selected
用户其他的授权:
GRANT 赋于权限
CONNECT(基本的连接), RESOURCE(程序开发), DBA(数据库管理)
常用的数据对象权限有以下五个:
ALL ON 数据对象名, SELECT ON 数据对象名, UPDATE ON 数据对象名,
DELETE ON 数据对象名, INSERT ON 数据对象名, ALTER ON 数据对象名
GRANT CONNECT, RESOURCE TO 用户名;
GRANT SELECT ON 表名 TO 用户名;
GRANT SELECT, INSERT, DELETE ON表名 TO 用户名1, 用户名2;
2.REVOKE 回收权限
REVOKE CONNECT, RESOURCE FROM 用户名;
REVOKE SELECT ON 表名 FROM 用户名;
REVOKE SELECT, INSERT, DELETE ON表名 FROM 用户名1, 用户名2;