单选题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?（）AAllow the database to continue running, drop the TEMP tablespace, and then re-create it with new tempfilesBShut down the database, restore and recover the tempfile from backup, and then open the database with RESETLOGSCAllow the database to continue running, take the TEMP tablespace offline, drop the missing tempfile, and then create a new tempfileDAllow the database to continue running, add a new tempfile to TEMP tablespace with a new name, and drop the tempfile that has been corrupted.
单选题
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.
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单选题You have lost datafiles 1 and 3 from your database，and the database has crashed. In what order should you perform the following steps to recover your database？（） 1. Take the datafiles that were lost offline. 2. startup mount the database 3. Issue the alter database open command. 4. Restore the datafiles that were lost 5. Recover the datafiles with the recover datafile command. 6. Bring the datafiles back online. 7. Recover the database with the recover database command.A 2，1，3，4，5，6B 2，4，5，3C 4，7，3D 2，4，7，3E 2，7，3
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