查看当前容器和当前用户
创新互联自2013年起,先为鄂城等服务建站,鄂城等地企业,进行企业商务咨询服务。为鄂城企业网站制作PC+手机+微官网三网同步一站式服务解决您的所有建站问题。
show con_name user
select sys_context('userenv', 'con_name'),sys_context('userenv','session_user') from dual;
查看所有PDB
show pdbs
select con_id, dbid, guid, name , open_mode from v$pdbs;
启动PDB:
alter pluggable database all open; --开启所有PDB
alter pluggable database PDBNAME open; --开启名称为PDBNAME的PDB
alter session set container=PDBNAME;--切换名称为PDBNAME的PDB里面去开启
startup
关闭PDB:
alter pluggable database all close immediate; --关闭所有PDB,不加immediate就是默认的normal
alter pluggable database PDBNAME close immediate;--关闭名称为PDBNAME的PDB,不加immediate就是默认的normal
alter session set container=PDBNAME;--切换名称为PDBNAME的PDB里面去关闭
shutdown immediate
创建一个新的PDB:(已经存在db_create_file_dest的情况下)
create pluggable database test admin user admin identified by admin;
alter pluggable database test open; --将test打开
根据seed模板创建一个新PDB(不存在db_create_file_dest的情况下,必须加上file_name_convert)
create pluggable database pdb1 admin user pdb1 identified by pdb1 file_name_convert=('/u01/app/oracle/oradata/ocp/pdbseed','/u01/app/oracle/oradata/ocp1/pdb1');
alter pluggable database pdb1 open; --将test打开
克隆PDB
create pluggable database test2 from test; --test必须是打开的,才可以作为克隆源
alter pluggable database test2 open; --然后打开这个pdb
删除PDB
alter pluggable database test2 close immediate; --关闭之后才能删除
drop pluggable database test2 including datafiles; --删除PDB test2并同时把数据文件也从磁盘上删除了,必须加上including datafiles,不加including datafiles或加keep datafiles都会报错ORA-65179: cannot keep datafiles for a pluggable database that is not unplugged
unplug拔下某个数据库(必须要into到具体的xml格式的文件)
SQL> alter pluggable database pocp1 close immediate;--之后执行cdb_data_files查不到该pdb的数据文件,但是该pdb的数据文件还在, show pdbs还可以看到该pdb
SQL> alter pluggable database pocp1 unplug into '/home/oracle/pocp1.xml';--之后执行cdb_data_files查不到该pdb的数据文件,但是该pdb的数据文件还在, show pdbs还可以看到该pdb
SQL> drop pluggable database pocp1; --unplug后drop database不加including datafiles就是默认的keep datafiles;该pdb的数据文件还在,show pdbs看不到该pdb;加了including datafiles的话,该pdb的数据文件被删除了
drop pluggable database pocp1=drop pluggable database pocp1 keep datafiles
插上这个数据库(上面的拔下操作执不执行第三步drop操作的话,执行如下语句会报错ORA-65012: Pluggable database pocp1 already exists,上面的拔下操作执第三步时加了including datafiles则执行如下语句会报错ORA-19505: failed to identify file,ORA-27037: unable to obtain file status)
SQL> create pluggable database pocp1 using '/home/oracle/pocp1.xml' nocopy tempfile reuse;
SQL> alter pluggable database pocp1 open;
插上一个数据库时可以修改PDB名称,/home/oracle/pocp1.xml是pocp1创建的,该xml文件中显示
SQL>create pluggable database TDB101 using '/home/oracle/pocp1.xml' nocopy tempfile reuse;
查询CDB$ROOT的数据文件
select file_name from cdb_data_files where con_id=1;
查询某个PDB的数据文件
select file_name from cdb_data_files a,cdb_pdbs b where a.con_id=b.con_id and b.pdb_name='XX'
查询某个数据文件对应的PDB
select pdb_name from cdb_data_files a,cdb_pdbs b where a.con_id=b.con_id and a.file_name like '%XX%';
查询PDB$SEED的数据文件
alter session set "_exclude_seed_cdb_view"=FALSE;
select file_name from cdb_data_files where con_id=2;
每个PDB执行如下语句只能看到自己这个容器下的数据文件,CDB才能看到所有容器的数据文件
select file_name,file_id,CON_ID from cdb_data_files;
每个容器执行如下语句只能看到自己这个容器下的数据文件,CDB也只能看到自己这个容器的数据文件
select file_name,file_id,CON_ID from cdb_data_files;