单选题A database is running in ARCHIVELOG mode and regular backups are performed. A user receives the following error message . Which is the recommended sequence of operations you need to perform for the query successfully?（）ADrop the affected tablespace, re-create the tablespace, restore the datafiles, and the tablespace. BTake the affected datafile offline (if not already offline), restore the damaged image of the datafile, and then bring it online. CRestart the database in MOUNT mode, restore the damaged datafile, recover the datafile and then open the database with resetlogs.DPut the database in RESTRICTED mode, restore all the datafiles in the affected datafile and recover the tablespace, and then put the database in normal operational mode.
单选题
A database is running in ARCHIVELOG mode and regular backups are performed. A user receives the following error message . Which is the recommended sequence of operations you need to perform for the query successfully?（）
A
Drop the affected tablespace, re-create the tablespace, restore the datafiles, and the tablespace.
B
Take the affected datafile offline (if not already offline), restore the damaged image of the datafile, and then bring it online.
C
Restart the database in MOUNT mode, restore the damaged datafile, recover the datafile and then open the database with resetlogs.
D
Put the database in RESTRICTED mode, restore all the datafiles in the affected datafile and recover the tablespace, and then put the database in normal operational mode.
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