[单选]
You work as a database administrator for Certkiller .com. You added atablespaceto your database. Because of the changes to the physical structure of your database， you performed a backup of the control file to trace. After this， you lost only the control files and the instance aborted due to a hardware failure.
How would you proceed to recover the database？（）

A . Start the instance and open the database, instance recovery automatically recovers control files
B . Create a file based on the contents of the trace file and save it to the control file locations and start the database
C . Re-create the database (The recovery of the control file is not possible because you have lost all the control files.)
D . Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file.
E . Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.

Which two statements about the background process of thedatabase writerare true（） It is possible to have multiple database writers in an Oracle instance.。 It writes dirty buffers， if any， to data files whenever a checkpoint occurs.。 It writes dirty buffers， if any， to data files whenever a transaction commits.。 It writes dirty buffers， if any， to data files before the log writer （LGWR） writes.。丙烷制冷压缩机的润滑油过滤器可滤掉的污物颗粒为（）以上 8um。 9um。 10um。 11um。描写了祖孙三代女人故事的小说是（）王安忆《长恨歌》。迟子建的《日落碗窑》。苏童的《妇女生活》。莫言的《红高粱》。与鲁迅的《狂人日记》有相似之处的小说是（）马原的《虚构》。余华的《现实一种》。林白的《回廊之椅》。残雪的《山上的小屋》。模板工程的质量通病有（）。梁模板质量通病。柱模板质量通病。墙模板质量通病。板模板质量通病。

You work as a database administrator for Certkiller .com. You added atablespaceto your database. Because of the changes to the physical structure of your database， you performed a backup of the control file to trace. After this， you lost only the control files and the instance aborted due to a hardware failure.
How would you proceed to recover the database？（）

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