Upgrade to Oracle Database 12c OCP 1z0-060 No.1

Posted 2022-06-22 SQLplusDB

Your multitenant container (CDB) contains two pluggable databases (PDB), HR_PDB and ACCOUNTS_PDB, both of which use the CDB tablespace.
The temp file is called temp01.tmp.

A user issues a query on a table on one of the PDBs and receives the following error:

ERROR at line 1:
ORA-01565: error in identifying file ‘/u01/app/oracle/oradata/CDB1/temp01.tmp’
ORA-27037: unable to obtain file status

Identify two ways to rectify（纠正） the error.

A. Add a new temp file to the temporary tablespace and drop the temp file that that produced the error.

B. Shut down the database instance, restore the temp01.tmp file from the backup, and then restart the database.

C. Take the temporary tablespace offline, recover the missing temp file by applying redo logs, and then bring the temporary tablespace online.

D. Shutdown the database instance, restore and recover the temp file from the backup, and then open the database with RESETLOGS.

E. Shut down the database instance and then restart the CDB and PDBs.

Answer: A,E

Explanation:
关键点临时表空间不需要备份，重建即可。

• Because temp files cannot be backed up and because no redo is ever
  generated for them, RMAN never restores or recovers temp files. RMAN does track the
  names of temp files, but only so that it can automatically re-create them when needed.

• If you use RMAN in a Data Guard environment, then RMAN transparently converts
  primary control files to standby control files and vice versa. RMAN automatically updates
  file names for data files, online redo logs, standby redo logs, and temp files when you issue
  RESTORE and RECOVER.

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