Oracle 12c ORA-01516: nonexistent log file, data file, or temporary file "1

23rwd

执行alter database move操作报错ORA-01516:
SQL> alter database move datafile '/u01/app/oracle/oradata/cdb/pdb/pdb_users01.dbf' to '/u01/app/pdb_user01.dbf';
alter database move datafile '/u01/app/oracle/oradata/cdb/pdb/pdb_users01.dbf' to '/u01/app/pdb_user01.dbf'
*
ERROR at line 1:
ORA-01516: nonexistent log file, data file, or temporary file "10"


[oracle@ora12c ~]$ oerr ora 1516
01516, 00000, "nonexistent log file, data file, or temporary file \"%s\""
// *Cause:  An attempt was made to use ALTER DATABASE to rename
//          a log file, data file, or temporary file; or to change attributes
//          of a data file or temporary file (for example, resize, autoextend,
//          online or offline); or to re-create or move a data file.
//          The attempt failed because the specified file
//          is not known to the database's control file
//          or is not of a type supported by the request.
// *Action: Specify the name or number of an existing file
//          of the correct type, as appropriate.
//          Check the relevant V$ table for a list of possible files.

查看file 10是否存在：

[oracle@ora12c backup]$ du -sh /u01/app/oracle/oradata/cdb/pdb/pdb_users01.dbf
5.1M/u01/app/oracle/oradata/cdb/pdb/pdb_users01.dbf

文件10存在。
这个时候想到log file、temporary file难道只能在con_name为自己数据库可用？带着疑问做测试。

SQL> show con_name

CON_NAME
------------------------------
CDB$ROOT

首先用alter pluggable database move命令来看看是否在CDB数据库中能否一定PDB文件。
SQL> alter pluggable database move datafile '/u01/app/oracle/oradata/cdb/pdb/pdb_users01.dbf' to  '/u01/app/pdb_user01.dbf' ;

alter pluggable database move datafile '/u01/app/oracle/oradata/cdb/pdb/pdb_users01.dbf' to  '/u01/app/pdb_user01.dbf' ;

                                                                                          *
ERROR at line 1:
ORA-01916: keyword ONLINE, OFFLINE, RESIZE, AUTOEXTEND or END/DROP expected


显然，在CDB中不支持alter pluggable database move命令



接下来在pdb中执行alter pluggable database move操作
SQL> show pdbs        

    CON_ID CON_NAME  OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED  READ ONLY  NO
3 PDB  READ WRITE NO
SQL> alter session set container=pdb;

Session altered.

SQL> alter database move datafile '/u01/app/oracle/oradata/cdb/pdb/pdb_users01.dbf' to '/u01/app/pdb_user01.dbf';

Database altered.


SQL> select name,status from v$datafile where file#=10;

NAME                                                                             STATUS
-------------------------------------------------------------------------------- -------
/u01/app/pdb_user01.dbf                                                          ONLINE

成功！
   总结:尽管oracle 12c日志文件共享，但是cdb和各个pdb只能在各自数据库使用自己的日志。