User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA,
which commands must you execute to enable SCOTT to flash back the transactions? (Choose
four.)
A.
ALTER DATABASE FLASHBACK ON;
B.
GRANT SELECT any transaction TO scott;
C.
GRANT EXECUTE ON dbms_flashback TO scott;
D.
ALTER DATABASE ADD SUPPLEMENTAL LOG DATA;
E.
ALTER TABLESPACE undots1 RETENTION GUARANTEE;
F.
ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY) COLUMNS;
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BCEF
http://vikaskohlioracledba.blogspot.com/2013/03/backing-out-transactions-with-flashback.html