多项选择题
You are maintaining your database in Oracle10g. You perform a full user-managed backup every Sunday at 8：00 P.M. Your database is running in ARCHIVELOG mode. On Monday， at 9：00 A.M.， a tablespace is dropped. You decide to perform incomplete recovery to recover the dropped tablespace. Which two clauses can you use with the RECOVER command？（）
A. UNTIL SEQUENCE
B. UNTIL SCN
C. UNTIL CHANGE
D. UNTIL CANCEL
相关考题
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单项选择题
In which situation will you run the script containing the following statement？（） CREATE CONTROLFILE REUSE DATABASE SALES NORESETLOGS ARCHIVELOG MAXLOGFILES 20 MAXLOGMEMBERS 3 MAXDATAFILES 30 MAXINSTANCES 10 MAXLOGHISTORY 1200 LOGFILE GROUP 1 （ ’/disk1/prod/orders/db/log1a.dbf’， ’/disk2/prod/orders/db/log1b.dbf’ ）SIZE 100K GROUP 2 （ ’/disk1/prod/orders/db/log2a.dbf’， ’/disk2/prod/orders/db/log2b.dbf’ ） SIZE 100K， DATAFILE ’/disk1/prod/orders/db/database1.dbf’， ’/disk2/prod/orders/db/file1.dbf ’；
A. when all the control files are missing and only a binary backup of the current control file exists
B. when a multiplexed copy of the current control file is missing
C. when all the control files are missing and only an ASCII representation of the binary control file exists
D. when the SPFILE is missing -
多项选择题
You are the Database Administrator （DBA） of your company. You execute the following statement on an Oracle 10g instance： SQL> ALTER SYSTEM SWITCH LOGFILE； Which two tasks are performed when the statement is executed？ （）
A. The DBWn process writes to the datafile.
B. Changes in the background process are recorded.
C. The log file is updated with the current SCN number.
D. The System Change Number （SCN） is recorded in the control file.
E. The changes to the listener configuration in the listener.ora file are recorded. -
单项选择题
You are maintaining the SALES database of TeleStar Corporation. The online redo log configuration of the database is as follows： One of the redo log members， redo3b， is lost due to disk failure. How will you recover the redo log member redo3b？（）
A. by performing an incomplete recovery from the last backup
B. by performing an import operation
C. by performing a complete database recovery
D. by dropping the lost member and adding a new redo log member
