A.Until SCN B.Until time C.Until cancel D.Recover using backup control file.
A.CREATE USER B.CREATE SESSION C.CREATE ANY TABLE D.IMP_FULL_DATABASE E.EXP_FULL_DATABASE
A.Every three minutes. B.When a log switch occurs. C.When forces by an administrator. D.When a tablespace is taken offline normal. E.When the redo buffer is one-third full.