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多选题
Which are the prerequisites for performing flashback transactions on your database？（）
A
Undo retention guarantee for the database must be configured.
B
Supplemental log must be enabled for the primary key.
C
Supplemental log must be enabled.
D
Execute permission on the DBMS_FLASHBACK package must be granted to the user.
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更多 “多选题Which are the prerequisites for performing flashback transactions on your database？（）AUndo retention guarantee for the database must be configured.BSupplemental log must be enabled for the primary key.CSupplemental log must be enabled.DExecute permission on the DBMS_FLASHBACK package must be granted to the user.” 相关考题
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Which are the prerequisites for performing flashback transactions on your database？（）A、 Undo retention guarantee for the database must be configured.B、 Supplemental log must be enabled for the primary key.C、 Supplemental log must be enabled.D、 Execute permission on the DBMS_FLASHBACK package must be granted to the user.
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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 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
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多选题What are the prerequisites for performing flashback transactions? （）(Choose all that apply)ASupplemental log must be enabledBSupplemental log must be enabled for the primary keyCUndo retention guarantee for the database must be configuredD”EXECUTE “ permission on the DBMS_FLASHBACK package must be granted to the user
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