单项选择题
A. Query the V$FLASHBACK_DATABASE_LOG view.
B. Query the V$FLASHBACK_DATABASE_STAT view.
C. Check the value of the DB_FLASHBACK_RETENTION_TARGET initialization parameter.
D. Query the V$RECOVERY_FILE_DEST view.
多项选择题 In which two scenarios should you issue the following command？（） FLASHBACK TABLE SCOTT.EMP TO TIMESTAMP SYSTIMESTAP- INTERVAL ’15’ MINUTE；
单项选择题 You receive the following error： ORA-19804： cannot reclaim nnnnn bytes disk space from mmmmm limit Identify the reason for receiving the above error message？（）
多项选择题 Youdecidedtoconfiguretheflashrecoveryareainyourdatabasetocentralizethestorageofalltherecoveryfilesinacertainlocationondisk.Whichtwoparameterswillyouspecifyintheinit.orafile？（）