UserSCOTTwantstobackoutthetransactionsontheREGIONStableinhisschema.AsaDBA，whichcommandsmustyouexecutetoenableSCOTTtoflashbackthetransactions？（）A. ALTER DATABASE FLASHBACK ONB. GRANT SELECT any transaction TO scottC. GRANT EXECUTE ON dbms_flashback TO scottD. ALTER DATABASE ADD SUPPLEMENTAL LOG DATAE. ALTER TABLESPACE undots1 RETENTION GUARANTEEF. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA （PRIMARY KEY） COLUMNS

多项选择题

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？（）

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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