QUESTION 100The EMP table exists in your schema. You want to execute the following query:SELECT ename, salFROM empAS OF TIMESTAMP (SYSTIMESTAMP - INTERVAL '6' MINUTE)WHERE ename = 'ALLEN';What are the minimum requirements for the statementto execute successfully? (Choose all that apply)A. ARCHIVELOG mode must be enabledB. Row Movement must be enabled for the tableC. FLASHBACK must be set to ON for the databaseD. The UNDO_MANAGEMENT parameter must be set to AUTOE. The UNDO_RETENTION parameter must be set appropriatelyAnswer: DE同69题：http://blog.csdn.net/rlhua/article/details/14108089
Explanation/Reference:Section: SQL, PL/SQL, Packages, Functions, Jobs & Views
