On Jan 11, 200

题目

On Jan 11, 2005 at 2:30 P.M., an erroneous update operation modified all the values of column LASTNAME in the EMPLOYEE table in the Scott schema to an empty string. You are the system administrator, and you want to return the original values in the table. To do so, you decided to flash back the table. Which two options can you use to flash back a table?()

  • A、 by using Oracle Enterprise Manager
  • B、 by issuing the FLASHBACK TABLE statement at the RMAN prompt
  • C、 by issuing the FLASHBACK TABLE statement at the SQL prompt
  • D、 by issuing the FLASHBACK TABLE statement at the LSNRCTL prompt
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