多项选择题
A. Database must be running in archivelog mode.
B. Automatic undo management must be enabled.
C. Undo retention guarantee must be enabled.
D. The tablespace on which the Flashback Data Archive is created must be managed with Automatic Segment Space Management (ASSM).
单项选择题 You issue the following RMAN command to set a retention policy on a database: RMAN>CONFIGURE RETENTION POLICY TO REDUNDANCY 2; What will be the outcome of issuing this command?（）
单项选择题 You plan to use Flashback Drop feature to recover a dropped table SALES_EMP. No other table with the same name exists in the schema. You query RECYCLEBIN and find multiple entries for the SALES_EMP table as follows: You then issue the following statement to recover the table: SQL> FLASHBACK TABLE sales_emp TO BEFORE DROP; What would be the outcome of the precedent statement?（）
多项选择题 Whichoftheserecommendationsshouldbefollowedbeforecapturingaworkload？（）