053-657

The database is currently open and the temp03.dbf tempfile belonging to the default temporary
tablespace TEMP has been corrupted. What steps should you take to recover from this tempfile loss in an efficient manner?
A. Allow the database to continue running, drop the TEMP tablespace, and then re-create it with new tempfiles
B. Shut down the database, restore and recover the tempfile from backup, and then open the database with RESETLOGS
C. Allow the database to continue running, take the TEMP tablespace offline, drop the missing tempfile,and then create a new tempfile
D. Allow the database to continue running, add a new tempfile to TEMP tablespace with a new name, and drop the tempfile that has been corrupted.

　　--在 11g 中，如果删除临时文件，重启后会自动重新生成，并且在使用 RMAN restore 的时候 也会自动创建临时文件。
　　因为临时文件不会影响数据库的运行，所以可以直接添加一个新的临时，把损坏的 drop 掉 D 对