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HomeDatabaseMysql TutorialOracle 12C PDB 维护基础介绍

先说基本用法: 先按11G之前进行 conn / as sysdba; create user test identifed by test; ORA-65096: 公用用户名或角色名无效.

先说基本用法:

先按11G之前进行

conn / as sysdba;

create user test identifed by test;

ORA-65096: 公用用户名或角色名无效.

查官方文档得知“试图创建一个通用用户,必需要用C##或者c##开头”,,这时候心里会有疑问,什么是common user?不管先建成功了再说

create C##user test identifed by test;

创建成功

SQL>show con_name;

CON_NAME

------------------------------

CDB$ROOT

selectcon_id,dbid,NAME,OPEN_MODEfromv$pdbs;

 


    CON_ID      DBID NAME                          OPEN_MODE
---------- ---------- ------------------------------ ----------
        2 4066409480 PDB$SEED                      READ ONLY
        3 2270995695 PDBORCL                        MOUNTED


SQL>alter session set container=PDBORCL;

这时再用create user test identifed by test;建立用户就可以了。

CDB和PDB是Oracle 12C一个很亮的新特性,由于他们的引入导致传统的ORACLE数据库管理理念不少发生了改变,这里列举了部分最基本的cdb和pdb管理方式
cdb和pdb关系图

Oracle 12C PDB 维护基础介绍

ORACLE 12C版本

SQL>
select

* from

v$version; BANNER                                                                             
 CON_ID--------------------------------------------------------------------------------
 ----------Oracle
Database

12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production              0PL/SQL
 Release 12.1.0.1.0 - Production                                                    0CORE 
 12.1.0.1.0      Production                                                        0TNS
for

Linux: Version 12.1.0.1.0 - Production                                            0NLSRTL
 Version 12.1.0.1.0 - Production                                                    0

启动关闭pdb

SQL>
 startupORACLE
 instance started. Total
 System Global

Area  597098496 bytesFixed
Size               

2291072 bytesVariable
Size           

272632448 bytesDatabase

Buffers          314572800 bytesRedo
 Buffers                7602176 bytesDatabase

mounted.Database

opened.SQL>
select

con_id,dbid,NAME,OPEN_MODE
from

v$pdbs;    CON_ID     
 DBID NAME                         

OPEN_MODE----------
 ---------- ------------------------------ ----------        2
 4048821679 PDB$SEED                      READ

ONLY        3
 3313918585 PDB1                          MOUNTED        4
 3872456618 PDB2                          MOUNTED SQL>
alter

PLUGGABLE database

pdb1 open; Pluggable
database

altered. SQL>
select

con_id,dbid,NAME,OPEN_MODE
from

v$pdbs;    CON_ID     
 DBID NAME                         

OPEN_MODE----------
 ---------- ------------------------------ ----------        2
 4048821679 PDB$SEED                      READ

ONLY        3
 3313918585 PDB1                          READ

WRITE        4
 3872456618 PDB2                          MOUNTED SQL>
alter

PLUGGABLE database

pdb1 close; Pluggable
database

altered. SQL>
select

con_id,dbid,NAME,OPEN_MODE
from

v$pdbs;    CON_ID     
 DBID NAME                         

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