Oracle12C 用户创建、修改、授权、删除、登录等操作

1.以系统用户命令行登录：

sqlplus sys/sys as sysdba;

2. 确认选择CDB

select name,cdb from v$database;

col pdb_name for a30

select pdb_id,pdb_name,dbid,status,creation_scn from dba_pdbs;

select con_id,dbid,NAME,OPEN_MODE from v$pdbs;

CON_ID       DBID          NAME                        OPEN_MODE
---------- ---------- ------------------------------ ----------
         2      964253477      PDB$SEED                 READ ONLY
         3     3329151580     ORCLPDB                    MOUNTED

找到并点击Database Configurantion Assistant 然后下一步：

按照步骤依次操作即可。

3.创建使用者为test

SQL> create user c##test identified by test;
 
SQL>  alter session set container=PDBORCL;
 
会话已更改。
 
SQL> show con_name;
 
CON_NAME
------------------------------
PDBORCL

4.创建真正的用户

SQL> startup;
插接式数据库已打开。
SQL> create user test identified by test default tablespace users temporary tablespace temp;
 
用户已创建。
 
SQL> grant create user,drop user,alter user,create any view,connect,resource,dba,create session,create any sequence to test ;
 
授权成功。

5.修改plsql登录配置

E:javaOrcal_databaseOrcalvirtualproduct12.1.0dbhome_1 etworkadmin nsnames.ora文件中添加

ORCLPDB =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = ORCLPDB)
    )
  )

6.修改用户

例子： alter user c##test identified by 123456;

7.删除用户

7.撤销权限

列子： revoke connect, resource from c##test;

8.plsq客户端登录

9.创建用户