单项选择题
A.The database would open normally.
B.The database would not open， and it would stop at mount stage.
C.The database would open after automatically performing instance recovery.
D.The database would not open， and you have to perform database recovery to open it.
多项选择题 WhichtwooperationscanbeflashedbackusingtheFlashbacktechnology？（）
多项选择题 View this parameter setting in your database： DB_CREATE_FILE_DEST=’D： \oracle\product\10.2.0\oradata\oracle’ You created a tablespace by using this command： CREATE TABLESPACE USERS； Which two statements are true about the USERS tablespace？（）
单项选择题 Your database is in NOARCHIVELOG mode and a logswitch happens every 20 minutes. On Thursday morning，media failure resulted in corruption of a data file belonging to the TOOLS tablespace. Backups are taken on every Sunday. What would you do in this situation？（）