The EMP table exists in your schema. You want to execute the following query: SELECT ename, sal FROM emp AS OF TIMESTAMP (SYSTIMESTAMP - INTERVAL '6' MINUTE) WHERE ename = 'ALLEN'; What are the minimum requirements for the statement to execute successfully? ()
- A、ARCHIVELOG mode must be enabled
- B、Row Movement must be enabled for the table
- C、FLASHBACK must be set to ON for the database
- D、The UNDO_MANAGEMENT parameter must be set to AUTO
- E、The UNDO_RETENTION parameter must be set appropriately
正确答案:D,E
答案解析:有
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