Oracle 12C CDB、PDB常用管理命令
<ul>
<li>查看PDB信息（在CDB模式下）</li>
</ul>
<pre><code>show pdbs --查看所有pdb
select name,open_mode from v$pdbs; --v$pdbs为PDB信息视图
select con_id, dbid, guid, name , open_mode from v$pdbs;</code></pre>
<ul>
<li>切换容器</li>
</ul>
<pre><code>alter session set container=orcl1 --切换到PDBorcl1容器
alter session set container=CDB$ROOT --切换到CDB容器</code></pre>
<ul>
<li>查看当前属于哪个容器</li>
</ul>
<pre><code>select sys_context('USERENV','CON_NAME') from dual; --使用sys_context查看属于哪个容器
show con_name --用show查看当前属于哪个容器</code></pre>
<ul>
<li>启动PDB</li>
</ul>
<pre><code>alter pluggable database orcl1 open; --开启指定PDB
alter pluggable database all open; --开启所有PDB
alter session set container=orcl1; --切换到PDB进去开启数据库
startup</code></pre>
<ul>
<li>关闭PDB</li>
</ul>
<pre><code>alter pluggable database orcl1 close; --关闭指定的PDB
alter pluggable database all close; --关闭所有PDB
alter session set container=orcl1; --切换到PDB进去关闭数据库
shutdown immediate</code></pre>
<ul>
<li>创建或克隆前要指定文件映射的位置（需要CBD下sysdba权限）</li>
</ul>
<pre><code>alter system set db_create_file_dest='/u01/app/oracle/oradata/orcl/orcl2';</code></pre>
<ul>
<li>创建一个新的PDB：（需要CBD下sysdba权限）</li>
</ul>
<pre><code>create pluggable database test admin user admin identified by admin;
alter pluggable database test_pdb open; --将test_pdb 打开</code></pre>
<ul>
<li>克隆PDB（需要CBD下sysdba权限）</li>
</ul>
<pre><code>create pluggable database orcl2 from orcl1; --test_pdb必须是打开的，才可以被打开
alter pluggable database orcl2 open; --然后打开这个pdb</code></pre>
<ul>
<li>删除PDB（需要CBD下sysdba权限）</li>
</ul>
<pre><code>alter pluggable database orcl2 close; --关闭之后才能删除
drop pluggable database orcl2 including datafiles; --删除PDB orcl2</code></pre>
<ul>
<li>设置CDB启动PDB自动启动（在这里使用的是触发器）</li>
</ul>
<pre><code>CREATE OR REPLACE TRIGGER open_pdbs
AFTER STARTUP ON DATABASE
BEGIN
EXECUTE IMMEDIATE 'ALTER PLUGGABLE DATABASE ALL OPEN';
END open_pdbs;
/</code></pre>